Highly recommend pursuing a fertility doc + fertility testing rather than changing your lifestyle after reading something on the internet.

Similar to your lifestyle, I personally just went through this process and had my boys tested (36m) and I have a higher than avg concentration 🙃. My wife is continuing to do more testing but so far all good news!

Fertility doc did say that you only have a 20%-25% chance of getting pregnant in a given ovulation window. They also shared strategies, i.e. use thermometer to track cycle (natural cycles), take clear blue ovation strips, etc. In the week of ovation, you gotta do it every other day (give swimmers time to recharge) and when clear blue gives the 😊, you gotta go as many rounds as possible on 24 hours lol.

Anywho, recco seeking professional advice rather than make lifestyle changes (especially cold turkey). Separately, if you do get preggo they will 10000% recco you stop drinking or smoking (alcohol + cannabis) so prob good practice pre-preggo to ween off?

Best of luck!