New and looking for support

Hello Everyone,
I am a recently married guy. About two years ago my fiance found my stash, including exgf pictures. I was wrong to do that to her. I was her first relationship, and it hurt her. We still hadnt even had sex when she found it. I've tried not faping before, but things have gotten worse since I graduated and she hasn't found a job. The wedding was beautiful, but our intimacy has trailed off pretty bad in the last six months, and I relapsed pretty hard. Im now at least a once a day, sometimes two. It's effected my mood and my job performance.

I can't talk to my wife, because I haven't mentioned the relapse, and dont want to hurt her anymore. I want to be as good as I say I am.

So, how do I do it. Last time, fear was my motivation. Fear of losing her and being exposed. Now all i have in my chest is guilt, shame and hurt. I dont have many friends I trust with something like this.

So, what can I do?