I was up at 4 am making sure my fiance's lunch was made, breakfast was made & his coffee was ready…

I was up at 4 am making sure my fiance's lunch was made, breakfast was made & his coffee was ready to go... I do this every morning as I feel I should because I am not working & should do everything I can to make his life easier while working 50-55 hours a week on top of commuting 3 hours a day to ensure our bills are paid & we have everything we want & need. Now don't get me wrong, he wasn't always this great.. our relationship was a struggle for the first year and a half from the disception, dishonesty, manipulation, and mental abuse.. after a year and a half of it I was tired of fighting for a relationship that was one sided, that was draining the life out of me, that was deteriorating my mental, physical and emotional health so I gave him an ultamatum to either get help mentally & see a therapist because he had never been good with communication, watch me start treating him the way he was treating me or to watch me leave so someone else could treat me the way I deserved to be treated. From that day on he sought a therapist & it was like I was dating a whole new person. Our relationship has been just about perfect ever since, but I still have my doubts & insecurities due to past events, & past trauma I have endured.. I constantly find myself questioning everything big or small & when even the smallest detail seems off my automatically go back to thinking & feeling the way I did in the beginning. Constantly worrying if the past is going to creep back in. I worry even more now because we are starting a family & my whole life has been hell so I want more than anything for my daughter to have a better life than I did & I will ensure she is loved, safe and taken care of always. I don't want her to come from a broken home or be built from the same wreckage I was built from... I worry about the past so much that I give myself depression & anxiety thinking about the "what-ifs"... I make myself physically sick going through these motions & I know it's unhealthy but I cannot seem to find peace, I'm not sure if it is because I have been hurt so many times that I just expect it again or because I put so much trust into someone I love more than anything in this entire world & they just trampled it like it was nothing just like everyone else did (granted he has done so much to change & prove to me he has changed).. It's hard to forgive & forget when the person you love most could ever even thinking of doing you wrong when you have never once been dishonest, disrespectful or given them any reason treat you so poorly. I never wanted a house, family or kids before this man. I never wanted to settle down, I have always been the energetic, outgoing fireball of fun that could get any party started & put a smile on anyone's face and then I met my fiance & everything completely changed. From the minute we met I knew he was the one. I felt the connection instantly. There were no awkward moments, it was like we knew each other our whole lives. I instantly felt complete when I was in his presence, & truthfully I still do. I still want to experience all these things with him. It's just hard to allow myself to let go of what I've been through & find inner peace & happiness. We have been together for 2 & a half years & I don't want to give up. I have never been one to give up especially on someone I love more than anything. All I want more than anything is to just let go of the past so we can continue to work on our future. Does anyone have any tips other than therapy for finding inner peace, letting go of the past & learning to forgive open heartedly? I know if I don't try something soon I'm either going to ruin a good thing or ruin myself.