The difference just getting into the right mental state can have on performance on a task/project is huge.

Some don’t bother to set this up and then get frustrated easily and give up.

Spend a little time sharpening the saw.

Doesn’t have to be so obvious as a full blown meditation session.

Can even just think about what you want to get out of the task, do some detailed visualisation of yourself completing it (homage @DejaRu22), then “feel” the pleasure of completing it.

Performance will improve.

Also, general daily journaling to organise your thoughts and set your goals in your mind will pay dividends when it comes to actually doing the work.

When it comes to journaling just do what works for you - @ellobosalvaje has an excellent thread with a structure to get started.