How to become more attentive?

Question

Programming

Very often recently I began to make typos, they don’t check for the existence of a variable in an object ... As a result, bugs, bugs are small, but not pleasant. How to deal with it?

Answer 1

Go on vacation.

Answer 2

Not advertising for the sake of: lumosity.com, every day takes 10 minutes. The progress is really noticeable.
Plus - to remove all irritating factors, to create around "their own atmosphere".

Answer 3

Wai needs to relax. Something is stressing you. Relax, think about life)
Try different mindfulness exercises (now the Internet is teeming with such things).

Answer 4

You are overtired. Everyone knows that muscles grow during sleep, not during exercise. Learn to rest.