So, no self discipline then - needs to be told what to do - works well in coveralls? - Using the mob as he last chance saloon? maybe married/partner, with a few kids too so eyeing up SFA? ......Meh, give it a go mate.
I didn't see your now deleted original post but assume you're interested in the RAF Regt.
Firstly, while there may be advantages to the Army and RM, there are also disadvantages.
In the RAF we pride ourselves on being a little more 'people friendly' and our significantly better length of service stats in comparison to the other services speaks volumes. Those factors are generally particularly appealing to older recruits.
Also, do not just limit yourself to RAF Regt; there are plenty of other demanding and interesting RAF trades that may also be an option if you have the educational qualifications.