I am the same way!!! I just started my diet a couple weeks ago and its actually not that bad. I dont work out as much as I would like but I stopped eating crap and that really helps i already lost like 5llbs. If you cant work out alot dont worry just eat more veggies and fruit and you should see a diffrence that can motivate you. It worked for me!
what works for me is becoming involved in activities that i really enjoy... i don't like to feel forced to go to a gym which i hate... so instead i bought a bike to see if it were something i would enjoy and i love it... also, back in the day i used to dance, so i registered for a tap class through my local school district's adult education program. it's been 12 years since i've worn tap shoes last but i'm very excited! and it was super cheap!!!! $47 for 9 weeks! if you're interested i would check with your school district, mine also offers several other exercise programs... incl yoga and ballroom dancing ($70 per couple for 8 weeks!) if you have more questions, FM me!!!
