Study that scripture again. (You said, including oneself. Wrong!) Those are all outside influences. What CAN separate you from God is Willful Sin. Jesus came to TAKE AWAY our sin, and in Him there is no sin. 1 John 3:5. Verse 9 says a Spirit-filled Christian cannot sin. Romans 6:2 say we are dead to sin. But Hebrews 10:26-31 And Romans 6 (below) shows us that we still have free will and can WILLFULLY SIN. That WILL separate you from a Holy God. Only those who are righteous and holy will be taken to heaven. Revelation 22:11. And those who are still filthy in their sin and unbelief will be in hell with their father, the devil.
12 Therefore do not let sin reign in your mortal body, that you should obey it in its lusts. 13 And do not present your members as instruments of unrighteousness to sin, but present yourselves to God as being alive from the dead, and your members as instruments of righteousness to God. 14 For sin shall not have dominion over you, for you are not under law but under grace (the power of the Holy Spirit given as a free gift to the repentant Acts 2:38). 15 What then? Shall we sin because we are not under law but under grace? Certainly not! 16 Do you not know that to whom you present yourselves slaves to obey, you are that one’s slaves whom you obey, whether of sin leading to death, or of obedience leading to righteousness?