What are my chances of joining the british army? Please see circumstances....?

I am 32, 33 in a month. I have been on anti depressants, off them since just before last xmas. I have had surgery on my shoulder a few years back, but its healed and no problems. I have a small tattoo on the back of my that can be covered with a collar shirt. I consider myself very fit, i visit the gym several times a week and my cardio is good. So, what do you think my chances are? Cheers