friendship advice?😪

ok so I have these 3 friends and we met about 3 years ago when we were in 4th grade. I feel like they don’t want me in their group anymore. they do things like go to the movies and won’t invite me, cancel plans if we have any together, I always have to make the plans, and I feel like they just exclude me when we’re walking in the hallways or just talking I’ll always be on the end or behind them. please help they are my only friends and I don’t want to leave them and they are amazing sometimes but I just don’t feel the same type of energy back☹️