Crack on and do it. If you don't, you'll always be wondering "what if".
It sounds like you're in a decent financial position so ideal to get into it. If you're well established in your company, you might be able to negotiate flexible/part-time hours to work around a flying course and/or take a sabbatical if needed. When I was training, my employer in my previous career was fantastic with it and was happy for me to work around my flight training.
Also, you don't have to subscribe to the whole save up and get a house etc. just yet. Once you do that, you'll find it a lot harder to get money together for flight training. On the flip side, if you manage to get yourself a job flying and come out relatively debt free, you'll be in a well-paying profession and in a position to get yourself a decent place to live, especially if you're outside the London area!
Good luck with it and wish you all the best.