Struggling with managing life rn

So I work a full time job (dental nurse) 8.15am-5.45pm, I’m doing a dental nurse corse along side work and I go to adult maths and English classes after work for 2 hours every Tuesday and Thursday and get home at 8.15pm. I am struggling with trying to fit revision, exercise/meditation/yoga, social time and keeping on top of the house work, does anyone have any idea on how I should manage all this as I feel like I’m falling quite deep into a sadness.