hey jamesVee, i have personally done DBT myself and have found it extremely helpful.
i did the 8 week mindfulness course before i started DBT so i could be more mentally prepared for the intense therapy course. everyday i found it a struggle. it is hard when you first start, im not going to lie about that. you have to look at yourself alot and work on your own issues as well as learning to cope with environmental issues that can cause alot of distress. the more i went though the easier it started to get. i have high distress most days. after i completed the course, i was so so much better, i cant even describe. it is the BEST thing i have ever done for myself. i would do it again in a heartbeat.
what i found helpful is the people i met in the group therapy. everyone is going through similiar stuff and you just know you are no longer alone. i also found it helpful when i studied what the therapy does to the brain. This therapy actually helps re-train your brain. to me the therapy is scientific, it made so much sense on how the therapy works for the mental brain, and it made me feel that it is really worth the learning. i really reccomend that you give it another go when you feel strong enough in yourself. maybe research it abit and try get abit more understanding of therapies used in DBT. the lady that created DBT actually has it herself. i hope this is helpful.