Many other languages are easier to properly read and write then English.I'm stepping into Banty's shoes now. Two, too, to.
Two is a number - 2.
Too is a synonym for also but can also mean excessive.
Not too shabby. = Not excessively shabby. or I do that too. = I do that also.
If you separate out those two things, it is easier.
To can be tricky. Sometimes directional, as in toward something or an infinitive like - to go, to sow, to reap, to hatch.
I'm going to the zoo.
I don't have to do that.
Use to as a preposition before a noun or as an infinitive before a verb.
Many other languages don't have this conflict with to.