Hey, you know what? My dad told me this once that “whenever you enter a new place or a new situation, it’s you who has to make space for yourself and that you need to take up responsibility and work things out in your favour” 
 
I do believe in this because people are mostly just selfish and looking out for themselves. So you need to put yourself first and try to do everything in your power for what’s the best for you. You do what suits you and your goals, even if you feel left out of things. 
It really won’t matter in the end because you’ll be working on yourself and growing day by day!

Hey, why are you feeling alone. Don’t feel left out. Try to participate in everything for which you are thinking left out. I think you are feeling isolated but it might not be a reality. Try your best to indulge in everything you want. Involve yourself in every matter. Keep yourself busy in things. 
Develop your skills to reach at more competitive level. This won’t make you feel left out. But it will make you realise how important you are for everything you are feeling alone

Please don’t feel like that. I don’t know why you feeling that way but world is full of opportunities and you can’t be left out. There will be a place which is meant for you. You just don’t give up your hopes and try to be positive. See ssome situations make us feel like that but that doesn’t mean that we don’t have anything with us now. Try to find a happy place try to talk to someone you trust on and trust me it will be fine. 
Take care!