Starting Over again

Hi I have tried every diet plan out there (recently completed it starts with food) & I lose weight but I can never maintain past a couple of years! I've come round circle and now believe it is like my Mother used to say "everything in moderation". I read the blog and decided maybe I need a buddy someone to keep me accountable, most of my friends are sabotagers! I don't think we should cut out any food group entirely either & that's what I've been doing carbs mostly! I am in my 50s and it's not as easy anymore. Plus I need to do exercise again and I hate it! I need to lose 30 pounds!