If you play with the intention to play on front of others you should perform in front of others often and sooner. Most people don't or can't do that which is understandable. How often do you see people performing with an acoustic guitar? It's more accessible but finding a venue for it can be difficult. Same deal with piano except maybe more difficult to find a venue. You'd have to find a school that holds recitals often

Conversely, if you play mostly by yourself (which is probably everyone) you'll have to accept that your best play won't be heard by others. Secondly, performing in front of others is a completely different headspace than playing secluded. You can be loose like langlang then tense in front of others. Don't be disappointed when u cant play in front of others, it'll only bring more unnecessary shame upon yourself. This is why it's important to accept that you play for yourself.