You've gotten some great advice from the ladies above me. But I will chime in anyhow
For me OPKS did work, but I would often get some in the middle of my cycle that appeared pretty close to + but then later find that they weren't. I would often get 3 days of + OPKs then the 4th day I would O. Sometimes it would be I Oed the 3rd day too. Temping is what helped me pin point that.
PS don't ever apologize for a post being too long

We all enjoy helping each other out and the more we know the better!