I’ll try to make this quick.
“Try to” and “try and” are not interchangeable.
If try describes an attempt to complete another verb, then to is correct. This is almost always the case.
My cat will try to sleep on my face at night if I don’t stop him.
“I think I’ll try to fit in this box. Oh hey! I succeeded!”
If trying is a separate action from the following verb, then there is an and between them. There’s generally only one phrase that uses this, and it’s try and fail.
“I may try and fail, but some part of me will end up in this box.”
Note the different meanings:
I may try and fail.
I may try to fail.
Don’t try to fail at things, folks.
The Grammar Cat 