I hate having no control with holding my interest in hobbies

Just a couple weeks ago I was all excited to really improve at art and I was reading materials and grinding and practicing and I wanted to draw something cute for valentine's day and I even started the sketch and everything and... Poof. It's all gone. You couldn't force me to hold a pencil at gunpoint right now. It's probably not gonna come back before the 14th. I hate it. I just wanna be interested in the things that I love all year long like a normal person instead of randomly once every 2 or 3 months.