tldr - social anxiety holding me back from talking to girl when she is seen with other males

After my discovery of TRP, my outlook on life has changed drastically. My life changed after years of BP filled mistakes that would make even the most Alpha of men cringe. I wouldn’t say I’m Chad who gets pussy whenever he wants but I’m definitely not Billy Beta. I internalised the sidebar at this point, but I have one big obstacle, my severe social anxiety. Currently I attend high school and having found TRP at such a early point in life has saved me from further years of embarrassment. I have a lot of friends which is great for my social proof, I possess the knowledge of TRP and I highly doubt that any other person in my school even know TRP exists which already gives me a massive advantage over the other males. I haven’t started lifting yet but will start soon but have filled that gap in with playing soccer for a club the past few years. Knowing what the sidebar has taught me, having great social proof and am not unfit at all but can still improve by lifting which will give me more of a advantage to what I already have, I cannot get past my severe social anxiety. I am fully aware of it and it is completely debilitating to my confidence and my mental state. My social anxiety kicks in when I want to talk to a girl I am interested in right now. Now I have no problem approaching her however there is one caveat, I get extremely anxious and refuse to talk to her if I see other males around her talking to her. My body and mind just simply refuse to do what I want it to do, which is get up and approach her. Once I see my opportunity slip past my hands, I feel regret which is the worst feeling you can get. I now turn to the wisdom of you guys, do you have any tips to combat the anxiety when trying to approach no matter what?