[header] How to use " too " and " to " correctly [title] Focus on " too " first. [step] " too " is used less frequently than " to, " so if you know what " too " means, then you can use it just for those specific meanings. You can feel confident that when " too " is not appropriate, " to " is the right choice. 
[substeps] Try stressing (emphasizing) " too " when spoken, to help yourself assess whether it is the correct word. If the word is meant to be " to, " it will sound odd if stressed.