I feel like stopping antidepressants altogether. been on them for 8 months. nothing seems to work... i'm tired of everything. would it be okay to stop?

No: Lexapro (escitalopram) and Celexa are (very close) almost the same med (isomer); and could make you feel tired, if you take them in am you might consider switch to nightly dose (and maybe pick one ?). Never stop a med without asking your dr. Many other combinations could work better than this, along with psychotherapy. If you are not satisfied, consider second opinion; or ask your dr. Best wishes.