Lack of right division is why you're so confused about so many things.
Peter (and the eleven) and Paul separated their ministries for a reason. A reason that is beyond your understanding.
Their ministries were not separated, all believers are members in partciular in the body of Christ. And remain so. Are apostles not in the body of Christ because they are not pastors or prophets?
You should read I Corinthians 12:13-31
For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.
13 For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.
14 For the body is not one member, but many.
15 If the foot shall say, Because I am not the hand, I am not of the body; is it therefore not of the body?
16 And if the ear shall say, Because I am not the eye, I am not of the body; is it therefore not of the body?
17 If the whole body were an eye, where were the hearing? If the whole were hearing, where were the smelling?
18 But now hath God set the members every one of them in the body, as it hath pleased him.
19 And if they were all one member, where were the body?
20 But now are they many members, yet but one body.
21 And the eye cannot say unto the hand, I have no need of thee: nor again the head to the feet, I have no need of you.
22 Nay, much more those members of the body, which seem to be more feeble, are necessary:
23 And those members of the body, which we think to be less honourable, upon these we bestow more abundant honour; and our uncomely parts have more abundant comeliness.
24 For our comely parts have no need: but God hath tempered the body together, having given more abundant honour to that part which lacked.
25 That there should be no schism in the body; but that the members should have the same care one for another.
26 And whether one member suffer, all the members suffer with it; or one member be honoured, all the members rejoice with it.
27 Now ye are the body of Christ, and members in particular.
28 And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then gifts of healings, helps, governments, diversities of tongues.
29 Are all apostles? are all prophets? are all teachers? are all workers of miracles?
30 Have all the gifts of healing? do all speak with tongues? do all interpret?
31 But covet earnestly the best gifts: and yet shew I unto you a more excellent way.
And Romans 12:4-8
4 For as we have many members in one body, and all members have not the same office:
5 So we, being many, are one body in Christ, and every one members one of another.
6 Having then gifts differing according to the grace that is given to us, whether prophecy, let us prophesy according to the proportion of faith;
7 Or ministry, let us wait on our ministering: or he that teacheth, on teaching;
8 Or he that exhorteth, on exhortation: he that giveth, let him do it with simplicity; he that ruleth, with diligence; he that sheweth mercy, with cheerfulness.
Ephesians 2:8 ff
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
9 Not of works, lest any man should boast.
10 For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them.
11 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;
12 That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
13 But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
14 For he is our peace, who hath made both one, and hath broken down the middle wall of partition between us;
15 Having abolished in his flesh the enmity, even the law of commandments contained in ordinances; for to make in himself of twain one new man, so making peace;
16 And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby:
17 And came and preached peace to you which were afar off, and to them that were nigh.
18 For through him we both have access by one Spirit unto the Father.
19 Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God;
20 And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;
21 In whom all the building fitly framed together groweth unto an holy temple in the Lord:
22 In whom ye also are builded together for an habitation of God through the Spirit.
That is a good read for you.
There is more, but read that, believe that and you will grow in maturity