Advice to not procastinate on doing art?

Okay so... sometimes i like to try draw pixel art when i have the idea and the will, but i want to try draw more often to improve myself. I know that the biggest suggestion is "draw/sketch everyday, even the smallest things but don't stop drawing" but, even if i tried, i end up to draw for 2/3 days (the time i need to finish a little drawing or a concept) and then come back after 2/3 weeks when i have again the will/idea and the energy to draw after work. So i wanted to ask you guys what is your advice to stop procastinate on doing art?