There was an Old Man on a hill,
Who seldom, if ever, stood still; He ran up and down In his grandmother's gown,
Which adorned that Old Man on a hill.
Turn away from your sins and turn to Jesus, He will provide everything you need and pour out His love, which is what actually changes you from the inside out and makes this easier. You will avoid a lot of heartache and pain for yourself and other humans by turning away from sin - sin as a concept is not just invented arbitrary rules when you think about consequence.
Eternal salvation is a free gift from God, given to you by grace through true faith in Jesus. His blood on the cross can be the total spiritual payment for your past, present and future sins; and He can be your renewer:
"because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved." (Romans 10:9)
Jesus already loves you more than anyone ever has or ever will do in this life. This love is sweeter than honey and you can experience it with you now and forever if you choose Him. This is a spiritual transaction of the faith in your heart and Jesus' payment, not something that requires you to do any physical works. The only alternative is eternal separation from God in hell, if you reject His blood as the one-time total payment for your sins. He conquered eternal death so that you can too.
"For I am sure that neither death nor life, nor angels nor rulers, nor things present nor things to come, nor powers, nor height nor depth, nor anything else in all creation, will be able to separate us from the love of God in Christ Jesus our Lord." (Romans 8:38-39)
If you don't know where to start with developing faith in God, ask God to show and prove himself to you. This takes some humility to ask genuinely, but it's worth it. Pray your prayers to God in the name of Jesus, because:
Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me." (John 14:6)
If you want to chat about this more, DM me.
As an extra note for any unsaved people who are left behind after the rapture:
Matthew 10:39: "He that findeth his life shall lose it:
and he that loseth his life for my sake shall find it."
Refer to that verse in regards to the saving power of true faith in Jesus' sacrifice for you.
Don't take the mark of the beast under any circumstances, and hold onto your faith in Jesus,
enduring through persecution. Even enduring, until, and as, the antichrist's followers forcibly take your physical life from you. Don't deny your faith to anyone.