Lexapro & severe fatigue

I’ve been on lexapro for 3 years. I went up to 20mg and was on that for a year and a half. About 6ish months ago I went down to 15mg. I am so tired all the time. I never have any energy to do anything. I just want to sleep and lay in bed.

Anyone have any alternatives to lexapro that they’ve had good luck with? Or any advice?