Longing to Come Back to My Deen

Assalamu alaikum. Lately, I’ve been feeling so much regret for not practicing my faith enough. The guilt is overwhelming, and I keep thinking that if I had been a better Muslim, maybe my life wouldn’t be this messy. So many hardships could have been avoided. I desperately want to reconnect with Islam, but I’m completely lost on where to begin. The weight of my past mistakes makes it hard to even take that first step back. Has anyone else been through this? I really need guidance.