Eishiba said in post 1:
I'm a Christian. Now what?
Once we become Christians, to help keep up our relationship with God, we should pray to him every day, such as with the Lord's Prayer (Mt. 6:9-13), praising & worshipping him, confessing our sins to him, asking him for what we need today, & thanking him for all he's given us (Philip. 4:6). And throughout the day we should immediately bring to him in prayer anything we become worried about at anytime (Philip. 4:6-7).
We should also fellowship with other Christians every day (Heb. 3:13, 10:25), at least in some fashion (Mt. 18:20), such as on this forum, being exhorted by them & exhorting them in turn (Heb. 3:13).
We also need to examine ourselves to make sure we're truly in the faith (2 Cor. 13:5, Prov. 28:26, 14:12). The way to do this is to read every word of the Bible (Heb. 4:12, Mt. 4:4) & see if we accept everything it teaches as having come from God (Jn. 8:47, 2 Tim. 3:16). For just as a true faith will initially come from reading (or hearing) what the Bible teaches (Rom. 10:17, 2 Tim. 3:15), so we can know we're remaining in the true faith if we continue to believe everything the Bible teaches came from God (Jn. 8:31b, 2 Tim. 4:2-4, 1 Tim. 4:1, Mk. 8:35-38).
In order to have any real relationship with Jesus & God the Father & the Holy Spirit (Mt. 28:19), most importantly we must believe the right things about Jesus (Jn. 14:6-7): that he's God the Word made flesh (Jn. 1:1,14), that he's the Christ (1 Jn. 5:1, 2:22), & that he's the only begotten (only born) Son of God (Jn. 3:16,36, 1 Jn. 2:23), meaning he's the only person ever born without any human father (Lk. 1:34-35). And we must believe Jesus lived a perfectly sinless life (Heb. 4:15, 2 Cor. 5:21) & so he could die on the Cross for our sins & rise from the dead on the 3rd day (1 Cor. 15:1-4). He rose & will remain forever in an immortal flesh & bone human body (Lk. 24:39, 2 Jn. 1:7), as our eternally-human high priest/mediator (1 Tim. 2:5, Heb. 2:16-17, 7:24-26).
Once we come into faith in Jesus, we must obey him & God the Father & the Holy Spirit by repenting from all our sins & getting water-immersion (burial) baptized into Jesus (Acts 2:38, Rom. 6:3-5, Gal. 3:27). Then we can get hands laid on us to receive Holy Spirit baptism (Acts 8:17) & 1 or more of the Holy Spirit's wonderful gifts (Acts 19:6, 1 Cor. 12:8-10). Then, washed from our sins by water baptism (Acts 22:16) & empowered by the Holy Spirit within us (Acts 1:8, Eph. 3:16), we must each & every day for the rest of our lives deny ourselves, take up our crosses, & follow Jesus (Lk. 9:23, 2 Cor. 5:15), by continuing in the faith to the end (Heb. 3:6,12,14, 6:4-8, Jn. 15:6, 2 Tim. 2:12), by repenting from every sin we might commit (Heb. 10:26-29, 1 Cor. 9:27, Lk. 12:45-46), & by doing the particular spiritual works which he's given us as individuals to do (Mk. 13:34, Rom. 12:6-8, Titus 3:8).
But if we as believers wrongly employ our free will to refuse to do these things, we can't expect to have any continued real relationship with Jesus & God the Father & the Holy Spirit. For a continued real relationship with them requires we not only continue to believe in them but also continue to obey them (Jn. 15:10, 14:21,23). Faith without works is dead (Jas. 2:20) & cannot ultimately save us (Jas. 2:14-26, Rom. 2:6-8, Mt. 7:21, Heb. 5:9, Rev. 22:14).