Does anyone else feels this about Jesus forgiveness

What I'm talking about is Gods Mercy, I feel like when I mess up or do something wrong or something is wrong, I can always come to God and he will fix it, my point is coming from someone who has been through a lot it just feels to easy ya know, like I don't deserve this its too easy, not like I don't like reading the bible or still applying the bible to my life but it just feels too easy for it to just be finished, I don't feel like I have to finish what I started but Jesus was willing to take that sacrifice and do it for us, do you get what im saying? If you do let me know because I'm only 14 and I feel like this all the time.