Hello,
Not so long ago, I was in a very similar position as you are. I had been in the ATC for two years, WSW 62 (if you know, you know) and had done quite a bit of volunteering and felt the same as you.
Personally, I did apply to university in case I hadn’t passed selection however, I applied to an FTO as soon as I had reached the minimum age to apply. In terms of life expierences, I realised how my experiences in the ATC greatly helped shaped my answers for the application questions and of course, the competency based interview. Mind, I was just a MOI cadet with a couple of camps. I’m now about to embark on a course soon.
Feel free to PM me.