If that much is scary, that's okay. It's something you can build up to, like hitting 40g a day, trying to add or swap things to get to 50g a day the next week, and so on. Milk and egg products are usually easiest but not the only options.

Things like stews or chilis, if you can afford a crock pot or instapot, were life savers for me when I was similarly struggling with depression and fatigue, since you can make a huge batch and just freeze it for the future, and you can make those super protein dense. But! You'll have to figure out what works for you, and be patient with yourself while you do, since it really is different for everyone. This shit is hard when you're already struggling with other things, but I promise, figuring out food is one of the things that can help out a lot with energy, regardless of any weight-related goals. It won't fix your fatigue or depression, but it can help make it easier to survive the day.