War Wedding

It's a skill that you need to work on TBH. I don't know if you have things holding you back like uncomfortable medium, physical pains, or anything that makes doing art for a lengthily period of time, and you don't need to tell me, but if you don't have something that makes extended periods of art uncomfortable, then you can build that stamina

A BIG step is to give yourself a measurable goal. Some ways to do this could be:-

* I'm copying this picture and I can't stop till I get the picture looking as close to the reference I can

* I need to achieve this specific level of quality that is reachable and you know what it looks like when you achieve it

* I need to draw this many pictures for this project, by this date

Stuff like that can give yourself artificial deadlines and parameters. So Like, Eventide is an example. That portal closes today to give you an artificial deadline. The cost to put it off is trokens and you already started it, so your brain switches on to "Lets do this" mode, and you finish off the campaign. It involves others too which inspires you to finish it for an artificial audience. I got a lot of practice making comics cause you have to have stamina to make a story in comic format. I also built up a lot of stamina in the past by copying photos and art I liked. It helped me build hand eye coordination, and helped a lot with learning some skills.

I don't know how important stamina is to you, but you could try copying pictures if you want to improve your stamina. Like.... 1:1 copying. Not stylized. IT forces you to look for things you never did before. It's good to step outside your comfortzone for learning purposes every now and then IT's up to you if that interests you of course