Find something or a phrase that motivates you when you don't want to workout. Sounds cliche but it can work if its right for you. Mine is "Don't Be Insignificant". I have it written in sharpie on a post it note above my desk.
Story Time (disregard if uninterested): Early on in my weight loss (started at about 290, at this point of story I was about 250) I was called by a friend to meet him at a bar where he was with 2 girls, 1 I was friends with before and 1 I had never met. When I showed up I was introduced to the one I had never met. She's very pretty, type of girl who gets a lot of attention at bars. She immediately gave me the look like "I wasn't even worth knowing" I could see it on her face (When you've been big for a long time you know this look" this was fine my intention was never to meet this girl and sleep with her right away or at all, I was just trying to have fun. At some point the other 2 go get a drink at the bar. This girl looks at me and asks where they went, I said the bar and the rest of the time they were gone she sat staring at her phone like I wasn't worth having a conversation with. We went back to my house after the bar for an hour or so, had a few drinks and everyone left.
The next Tuesday, the four of us go out for tacos. My friend was celebrating something so I bought all 4 of us a shot. I sat across from this girl for 2-3 hours and we all talked and had good conversation turns out I know a lot of people she knows. We go back to my friends house to hangout and have another drink. After an hour or two this girl goes to leave and shes says bye to her friend, my friend and then...she can't remember my name.
At this point I had met this girl at the bar, she had come to my house! I bought her a shot at Taco Tuesday, we talked in depth for 2-3 hours at Taco Tuesday, and we had hung out at my friends and she still couldn't remember my fucking name. I had never hit on this girl or been rude I had only been friendly. It's like after all this I'm this insignificant to you that you can't even remember my name?!?
I started saying the phrase "DONT BE INSIGNIFICANT" the next day to myself to motivate me every time I didn't want to work out or wanted to eat poorly. Moral of the story find something that pisses you the fuck off and use it as motivation. Sorry this story is so long but I know how difficult it is to keep motivation during weight loss. I started at 290 and am now down to 218. Good Luck with your weight loss. YOU CAN DO IT!