I waste a lot of my time simply doing nothing I want to work on my goals but I can`t.
Any suggestions about How to start focusing on the work?

May I ask why your focus is shifting?

Do you have too many thoughts or is the task just too dull?

Maybe check a doc? Could be a depression

get a friend who holds you accountable, even better someone with knowledge. Do some research on mentorship and coaching.

And make it a habit to read about 60 pages daily in a book.

The hardest part is starting. Unless like @GyroGearloose said you've got depression then it's really really hard to do anything apart from drowning in self-pity.

@heyheni nice advice.

I set timers. I have to do this thing for 45 min then 10 min break then do other thing. If I finish before timer great I let myself have a little longer break.