Musician Fapstronaut - Starting Today

I am a musician and often use porn to avoid practice (some of which can produce stress/anxiety). I finally want to quit after trying (but quickly failing) many times. I've used porn since I was about 9 or 10 and it has been somewhat of a daily (at least) ordeal since then. I watch and masturbate every night before I go to sleep and, on days where I don't have to get up, do it right as I wake up. I've been in a relationship for around 3 years and my SO knows about my problem and is supportive. I can take up to 45 min to an hour when we have sex. I've invested far too much time, energy, and money on this porn habit. I've always said to myself I'd be a far better musician and person if I stopped watching and I know this to be true. I've taken some steps to block porn on my phone/computer. One issue I've noticed is that the puffin browser can navigate around most porn-blocking software. Does anyone have a fix for this? Can anyone recommend a great blocking software? It would really help. I need it to be useful for computer and phone. Thanks so much. I'm glad to be here.