Ok that's a start.

So put racing down as more of a long-term thing. For now, maybe focus on losing the weight you mentioned.

The easiest way is just doing it the proven way. Watch your diet and exercise a lot. I think long rides, 2+ hours & a sensible diet are the ticket to weight loss. Commuting helps too since you ride twice a day. All of this will put your metabolism into overdrive.

So maybe 2-3 days riding, 2 days of whatever else you want - weight/swimming/etc.

I'd probably have a good 2 solid days of not doing any exercise in the course of each week. Instead do something relaxing or work on stretching.