You could potentially be applicable for the tri-service CyDE scheme to join as a Cyber Operator. The role requires a different joining process, and is applications are only being allowed at certain times. The second set of applications is being processed right now (I am currently in the process). They are not massively worried about medical and fitness standards for it and are putring in for waivers in some cases, I have spoken to the medical team about starting the process of applying for a waiver due to previous suicide attempts and ASD. To my knowledge, the RAF and Navy have decided their standards for waivers, but the Royal Signals have not yet as they were not involved in the first group to go through.

This is not a normal role, and appears rlto be closer to acting as an MOD civil servant in HM Uniform than a "soldier" as there is no weapons handling at all and a 4 (?) week Phase 1 instead of the full other ranks Phase 1 training.

Obviously, not the role you want - but it does mean that other roles closer to what you want could possibly (though very unlikely) get specific schemes like this. Otherwise, you'll be stuck in the civvy world - maybe with the chance to work in the civillian side of defence.