This happens to EVERYONE that is in, or has past, their 30’s. Your body is different, things move differently, certain areas feel softer and you don’t have the metabolism that you did when you were in your early 20's. Remember being able to stay up all night, eat a pizza and wake up the next morning sill looking fairly decent? (Raises hand)
Back then you didn't have to work out as hard, maybe really not at all. THEN next thing you know, you have kids, responsibilities, a mortgage, some extra fluff around your mid section and everything you have tried just hasn't worked.
If you can relate to ANY of that, I my have a solution for you...