Fellow Stutterers; what "type" of stutter do you have & has it always been the same?

Fellow Stutterers; what "type" of stutter do you have & has it always been the same? Hey everyone, Hope everyone is doing ok! I'm currently 29 and have stuttered since I was most likely around 8-9 years old. No clue how or why this started, as I experienced no medical or traumatic situations. I do have one Uncle who stuttered in his youth all the way upto his thirties, but now at 60 he's not stuttered for decades. My stutter has varied a bit throughout the years, but probably since my teen years, my main issue has been blocks on certain letters/words, or certain letters dragging on for a while. Words which have quite hard starts, such as B, D, M, P usually are my bane, as I physically cannot get the word to come out 9/10 times. My face scrunches up, sometimes my eyes even close for a moment while I usually try to force out the word/sound lol. But funnily enough, words which contain those letters in them (but not at the start), I'm completely fine with. Also, I'd say **S** is also a funny one, as sometimes I'll say the word outright, othertimes, the S will be dragged on a few seconds until the rest of the word comes out. I've also noticed that my speech is littered with filler words, or pauses such as 'erm', which has been an utter nightmare to cut out. Turns out saying 'erm' after a few words, is a brilliant way to set me up for a new sentence :D