Hire are a few tips to up productivity on development which has worked for me:

1) Use a system of at least 16gb ram when writing codes that requires compilation to run.

2) Test your code at most 3 times within an hour. This will combat the bad habit of practically checking changes on every new block you write.

3) Use internet modem in place of mobile hotspot and keep mobile data switched off. This will combat interruptions from your IM contacts and temptations to check your WA status update when working.

4) Implementation before optimisation... This is really important. It's tempting to rewrite a whole block even when other task are pending. If it works just leave it as is and move on to the next bull to kill, you can come back later to optimise.

5) Understand that no language is the best. Sometimes folks claim that PHP is faster than python. Okay I say but let's place a bet and I'll write a python code 10 times faster than your PHP on holiday. Focus more on your skill-set than the language else you'd find yourself switching frameworks more than necessary.

6) Check for existing code before writing an implementation from scratch... I bet you 50 bucks to your 10 someone already wrote that.

7) If it fails the first and then the second time... Don't try the third, check on StackOverflow for similar challenge.

8) When working with testers always ask for reproducible steps... Don't just start fixing bugs because sometimes their explanation looks like a bug when other times it's not and you can end up fixing what's never there.

9) If you're a tester always ask for explanations from the dev before calling a bug... It will save both your time and everybody's.

10) Don't be adamant to switching IDE... VSCode is much productive than Notepad++. Just give it a try an see for yourself.

My 10 cents.