To stop forcing words it is simple in theory but complicated in pratice, whenever you try to start a word and it begin to lock, you need to stop trying to force the word and start over and over and over again till you speak it without the blocks, in the begging you will have a hard time with it, lots of repetitions, but as the time passes you will be better at it and it will improve somethings at your stutter like you will have significantly less blocks, will have the possibility to read texts without stuttering and it leads to the next step, start reading texts and be carefull about your breathing, don't let your air goes out, breath out while you're reading, breath in in the pauses of the text, but it requires lots of training, try to speak more and don't force worlds, read a word list with words starting with p,b,t, and when you're fine with it start reading one text a day