Generally, I'd guess the Army will want you to complete your Return of Service before you can quit/transfer. Contractually I guess that's about 4 years service total.Iv also been in the army for 2 years (here comes the abuse) but wont to transfer across to RN diver. I felt like I made the wrong carer choice for a while now and would love to do this job. Would my situation make it difficult to do this?
Ive known very good swimmers who couldnt handle scuba. Had one on the PADI course I did years ago . He freaked out and went home. Another in Malta on a resort dive the dive center were doing whilst I was doing rescue diver, did fine in the pool, totaly lost it in the open water. As Ninja says go and try it .