I also had the same problem. What I did was just manually play until you get to 55 and reset it then. Don't use any tool to change level. It doesn't take long to rank up the legit way. You could always cheat your way up until 55 then it won't matter because you'll reset the stats
I do not know if there is a way of unlocking weapons without spending tokens. If there is no way with cheat engine or something else I need a way of resetting my stats completely, but I do not know how. I do not know how to set my prestige to 5 with cheat engine. It does not work. I need help.
The problem is that I do not want to prestige, I want to play until level 55 and then continue playing without using prestige. The problem is that I played around with a few trainers and fucked up my stats. To fix my stats, I used a weapon prestige trainer and set all my weapons to no prestige. What this did is that it locked all my weapons again. But I am rank 26 now and I miss very much unlock tokens now, because I already used them. If I continue leveling I will be missing about 15 unlock tokens at rank 55, which is a big problem, if you don't want to prestige. So I need to reset my stats OR hack more unlock tokens (don't know if it is possible).
You could always use the 110k XP trainer instead of the cheat engine pack to rank yourself up, then prestige and then use your prestige award to do the 'Fresh Start' feature. This is what I did and have tried to avoid hacks as much as possible since then. Hope this helps