I think it it’s important to remember to do some strength training with body and increase tabletennis training more and more. Pretty common with injuries, at least shoulder injuries when we start to train more.
If you want to go to Sweden I think Eslöv, Halmstad or Söderhamn would be good. There are also a lot of tabletennis in Stockholm but much bigger city. The previous mentioned are not so big cities so I think easiest to live in as a young player. I do not think they have shared living and help with those stuff. Would sa probably that is the hardest as a young player if you go alone. To practice and also do the other stuff. I know Söderhamn have small apartments/beds above the tabletennis hall. Easiest first step would be trying living there for a while, perhaps with a parent.
If you copy the name of the cities and search tabletennis I think you will find their website in google. Or if you search their city and ”bordtennis” which is tabletennis in Swedish.
I still think the easiest step would try to move to a place in the US where you can develop good. If you have vacation in the summer from school you could try to go to China, Sweden,Germany or France for summer camps. Maybe bring a parent.
I agree that we should not be to hard. Some answers seems a bit harsh.
I think you should try to get some momentum and action. Start with the smallest.
Like:
1 practice more in your hometown. Can maybe an older player or coach train you extra? Get a robot? Think how you can still fix school and train a lot. Many parents do not want you to skip school.
2 go to training camps in the US. Preferably somewhere you can perhaps move. Bring your parent.
3 is there an alternative to move somewhere in the US? If yes. Where? Who do you contact? Talk with your parents
4 if there are not training camps in the US. Which closest country have good camps? Is this realistic? Talk with your parents. Maybe combine their vacation with your camps
5 when you have done the above and get more experienced. Then consider moving to another country.
You need to try to do the small actions first so something happens and you get going.
A chat forum is good but you need to get help from your parents, closest coach or and a US coach that know which are the options where you live or close by. Can not do this alone.
I do think a chat forum can help you with technical, tactics and equipment advice. So maybe posting a video could help
Good luck and keep working hard.