This is going to sound nuts. But, writers block is a bitch and the only way to get past it is to write. I follow a lot of prompt accounts and I suggest you do it too. If you can’t summon anything to say read these plots and just work out your writing muscles!
Remember to take a deep breath and trust your self. You can write shitty work and edit it later but you can’t edit nothing.
When you feel yourself getting back in the zone begin working on your main project. What I do is find a way to take the prompt and use the characters from my novel and put them in that situation. It allows me to work through the block but still work with my main work.
Just write your main work anyway. I mean that sounds odd too but it seems to work a lot for me. Just think about the situation and just write words even if they’re bad.
Put on your favorite song, hum the hell out of it and put your attention on writing only. Get yourself a drink and put yourself in that place. You know the one.
The place that’s untouchable by reality. The one that only you can reach. Lock yourself there until you’ve overcome this episode of self doubt. Which is really all that writers block is. Your skill is still there. I promise. You just have to overcome the fear. Remember why you started writing in the first place.
Best of luck with your writing and I sincerely hope this helps.