I really need advice (WARNING: sh mention)

(TRIGGER WARNINGGGGGG please do not read this if you have issues with sh I am trying desperately to get advice, not to make anybody feel worse)

Okay so to start I have had an issue with self injury for probably 5 or so years. I am youngish now and was very young when I started. Since 2020/2019 I have used it as a coping mechanism for EVERYTHING. I don't want to put details because this is NOT a vent post. I have a wonderful boyfriend of 2 years and he has supported me throughout my journey and I really want to get better for him. I have tried what feels like everything. I track my relapses in an app. I distract myself. I try not to talk to people about it because it is not for attention and I feel like an attention seeker if I do. (NOT TO SAY that anyone is I just have always had a personal problem with reaching out) I am Christian and talk to God about it daily. I don't know what to do anymore. My longest clean streak was over a year, but I still went back. Just yesterday I broke 6 months, and that's why I'm making this post. If anyone has advice or a similar experience to share with me PLEASE do. I will take anything!!

(I'm sorry that this is sloppy and written terribly, I'm in a rush to post and get advice.)