Resources for self-help

Resources for self-help Hi all I hope you’re well. I (M27) have had a stammer ever since I first started to speak. I had speech therapy when I was 6-9 years old. Within the last year my stammer has become progressively worse, especially within the last 2 months. I’m on NHS waiting lists for therapy but I think I’ll be waiting around 6 months. Are there are resources/videos I can use for self-help. It’s really affecting my confidence at work and in my social life. TIA!