OPK's stressing me out. Worth it?

My husband and I decided to 'get serious' about trying after a chemical. I've been using OPK's twice a day but I'm only on day 3 and I'm already so stressed out. We have sex every 2 days anyway (would be every day but my vagina needs a break). I can't track BBT for a personal reason. I do monitor my CM and symptoms however. I wanted to use OPK's because everybody swears by them, but they're making me feel so stressed and anxious. Are they worth it?