want to study Astrophysics but have a different background

Hello you lovely people,
My name is Ankit and I am deeply into the astronomy ever since I looked at night sky for the first time. I always wanted to find answer to at least some of my queries but had no source then (in early 90s) and I also had no idea that one could also pursue a career in this field. I pursued a Bsc (Maths, Statistics and Comp Sci but no Physics) from Delhi Uni in 2006, worked for few years and then moved to the UK to pursue an MBA (Business management) and then ended up working there in well known firm in London. But while living freely and independently, I somehow got more attracted towards Astronomy and now really want to build a career in this. I am 29 now and have not much experience in Astronomy except what I have read or seen on books and on the internet. I approached few universities around the world but it seems that you need more experience than passion and dedication in everything today including astronomy. What knowledge and interest you have, does not really matter until you have a degree in the same. I still have an option to pursue a diploma in this (which very few unis around the world might not hesitate to offer me) and then I can obviously take a masters and then PhD in the same. I really wanna work in this field till the day I am alive as now I have known that whatsoever career I will pursue (even though I get paid a handsome amount), I will eventually get bored of it. I also think that I am still 29 and have time to start studying Astronomy before it gets too late. I have been shifted and compelled to choose other career options before due to the pressure by the society and system but once it will get too late, there will be more reasons to focus on myself and people connected to me than Astronomy. I haven’t got married yet because I don't want anything in my life which could distract me from this path. If you are thinking that since I had no experience in this and its too late for me than according to Science itself, you have no right to say that. Infact one of the greatest scientist ever born on this planet, Dr, Einstein started his career as a clerk. I don’t want to regret after 10 years that I should have pursued my interest in Physics and other sciences when I had time which is today. I AM SERIOUSLY LOOKING FOR YOUR SUGGESTIONS AND ADVICE REGARDING MY QUERY. FEEL FREE TO SAY WHAT DO YOU THINK IS RIGHT, also about the career opportunities should I luckily get the opportunity to study it. I am more keen in pursuing the same from the US as they have the best infrastructure in Astronomy (got the best telescopes, unis, institutes and INTEREST in this subject). They are the first on this planet to start researching, experimenting and studying Space. PLEASE ASSIST ME WITH WHATEVER YOU THINK COULD BE DONE FOR ME AS you only get this life once and Astronomy (knowing the secrets of the matter, space and everything we see) gives you the new and completely different perspective to LIVE your life.

Hey thanks a lot for your reply. It really gave a better picture of how things work with Astronomy studies. I really appreciate your precious time given to answer my query. Also, Would you recommend me any university (or college) where I won't have enough hurdles to get into? I hope you are aware that I did not have Physics in my BSc (it was just mathematics, statistics and comp sci).Thanks for your wishes.