I went to the park.
✗ I went too the park.
I spend too much time at the park.
✗ I spend to much time at the park.
"To" is a preposition which means "in the direction of".
I'm going to the movies.
Saying "I'm going the movies" would be incorrect. The word "to" is necessary.
"Too" means to an excessive degree.
The park is too big.
I wish the park were smaller.
Fast English Editing has a team of native English speakers ready when you need them. The rate is simply $0.04 per word. Find out more about Fast English Editing