I did the same thing. There are set cut scenes that happen before you reach the top. Tulin flew off to wait on one of the smaller islands, but I don’t remember which one. You need to find him before you can reach the top.I seem to have a game breaking bug...I took a hot air balloon all the way to the top of the blizzard in Rito Village and when I got there Tulin flew away (the same conversation as when you leave for another area).
I jumped off by balloon ship and into the wind temp without him. I cant activate the teleport location there, i assumed you need Tulin for that. However, now he never returns. No matter if I teleport to the sky tower, sleep until a blood moon etc. He has never come back.
So now I can't turn any of the turbines in the Wind Temple. I don't even have a save to roll back to because I've been trying to fix this for so long. Really hope I don't have to restart.