A long time ago, in 2010, when I was a member of a big, online photography forum, I joined a group who were running a 365 Project. The idea was that we had to take a photo every day for a year, and each one had to be inspired by a weekly theme.
It was a challenging project, but I completed it – more or less. I did fudge the rules a little by allowing myself to catch up another day if I missed a day’s photo. But I did take my 365 photos and they did (however tenuously) meet the weekly themes.
I would highly recommend this exercise as an excellent way to improve your photography skills. It doesn’t matter if you don’t have amazingly interesting subjects to photograph each day. I think of it as the equivalent of a musician playing scales. The aim is not to produce great art (lovely as that would be) but to practise your skills.