Jesus Christ is calling you to repent of your sins and take His free gift of salvation. Jesus is the only begotten Son of God Who lived a perfect, sinless life during His time here as a man 'in our shoes'. He used His perfection, His spotlessness and gave Himself up to be our perfect sacrifice so He could pay for all of our sins as He was crucified. He rose from the dead on the third day to show Himself powerful and mighty to save!
Jesus rose from the dead to show us that He indeed is God in the flesh and that He really did defeat sin and death on the cross. When He said, "It is finished!" the work was truly, once and for all finished. Since the payment for sin has been made all you have to do to be forgiven is turn AWAY from the bad things you know you're doing (repent of sin), believe on Jesus Christ as saviour (He really did pay for you to be able to come to God) and choose to turn TOWARD God as your Lord (do what He says instead of what you say). You should then continue to abide in Jesus (stay with Him, follow Him) and since He's your Lord (master) then you should do the things Jesus commands in His Word (the Bible).
If you want to learn more or have any questions you can message me or comment, but what's even better is that you open up the Bible and pray always asking God to speak to you.