Shreyas,
I hate to break the bad news to you, but there’s NOWHERE you can train and not encounter some level of turbulence. It’s a fact of life if you’re going to be flight training. Further the fact the instructor took you up on that day indicates it wasn’t even that bad otherwise they wouldn’t have. This is the reason when people say “I love flying places and want to be a pilot”. I say go take a lesson or 3 and then we’ll talk. It’s the same thing as taking a cruise and deciding you’d love crab fishing in Alaska. Maybe you would but maybe not?
The best advice I can give you is accept the fact the turbulence is simply waves in the air and while you may be uncomfortable, you’re safe. After a few lessons you’ll probably get used to it and your anxiety should lessen. If it doesn’t you may have to rethink a little.
Adam