Struggling a lot and I have big problems

So I am falling into lust a lot and the thing is whenever I pray at the time im praying and when I say amen a lot of bad thoughts of other people doing bad things that will hurt me a lot come to my mind, the thing is I have prayed in my opinion fast repetitive and I wasnt feeling remorse and I am scared Jesus is going to make my bad thoughts real and thats my problem right now, can someone give me any tips please im drowning in my mind