mom of six and need suport

im a mom of 6 kids i had my first when i was 17 i was a 130 pounds well i got back to a 160 when i had my secound child and i got two 175 when i had my third child i worked out and ate right and got down to 170 when i had twins in 2007 so back to working out every day and eating right i found out doing thingsout side helped me hiking, bike riding, walking 4 and 5 mile a day helped then at 170 again i had my last child and i really gained the weight with her i went throw a depressed stage in my life where i ended up weighing 250 pounds i work out every day and had to keep my head up for my kids but i find keeping my head up is hard some times im ashamed to look at my self i hate for my boyfriend to see me and i feel useless all the time i have gotten down to 223 and am kinda stuck but am kicking out breads and starches i have stoped drinking soda and im working out when ever i had a chance but getting motivated is hard some times my youngest child has adhd and is bi poler she takes up so much of my time and the stress of a child like her is hard but i am trying to keep my head up and stay on track but dont really know how to most days helpppp please need advise