This year (at the age of 32), after a decade of not cycling due to other commitments (work, relation, house etc), I started it all up again. I was so fed up with the fact that I was slowly gaining weight and having a poor health level.

That training really got me into the spirit again, up to the level that I am currently doing 150-200 miles a week. For next year I want to have a go (again) at competition riding. Luckely I found a team nearby which is of mixed age so I can start at club level with the team and gradually work my way up to the elite level. Which is going to pretty hard since that is a very high competition level. Still, you got to have goals in life. I will be one of the 'older' galls in that highest competition but over the last couple of years some of the 'oldies' have returned to the competition and proven to be able to defeat the youngsters.

My advice would also to just cyle for a year long and gradually increase distance and speed to slowly gain strength and technical skils. Riding offroad is also good to improve steering qualities. What you can do in that same year is to look for entrance level races near you and at first just look at how racing goes. And see if you can find a team to join, girls already driving can learn you the required race driving skills (how to I attack a curve, driving in a group, using the other driver to sit out of the wind etc) and race tactics.