I'm not sure that it's really possible - kind of like a process of recovery rather than recovering completely. Symptoms can be reduced and there are ways of coping when the status quo in life shifts. The latter being especially helpful when you're worried your progress will unravel and you'll sink back again. But it takes a lot of work. I'm from the UK as well so what i will say is that the circumstances are also going to play a big part unfortunately. What postcode you're under and what services you can access may well become a concern for you. All i'd say is, do your research, be persistent and don't take no for an answer. Check out the NICE guidelines if you need clarification. I assume you've already been referred to the local personality disorders team as you say you've been officially diagnosed. What's next, are they going to offer you DBT? Remember it's not the only treatment option so if you feel it's not right for you don't forget to inquire about the possibility of MBT or Schema if you feel they might be better. The Mind website has a lot of info on the disorder including treatment options so i would head there also if you haven't already. For self help, i always list dbtselfhelp.com as one of the better sites. All the best.