Having problems maintaining stamina in creative mode beacuse you place stuff too fast?
No worries i got just the thing for ya mate!!
Be sure that console is enabled by setting up launch options: -console

Next up when you load into ur world where you want to build stuff bring the console down with F5 and write the next stuff :

devcommands

debugmode

This will turn on cheats and debugmode will let you build without mats when u press B

Also one thing i know im boring alredy probably but it might help,type in the console tod 0.5 and envClear if you are annoyed
by weather and the mist that is appearing now with the new update

Last but not least stamina,figured out the top 3 food that will give you max stamina now after Mistlands update
If you are lazy just copy these in the console and get ur self best stamina food in the game atm:

spawn FishandBread 20
spawn MushroomOmelette 20
spawn Salad 20

These 3 delicious foods will bump you up to 300+ stamina so you have less problems while slaping those parts in place!

Hope this helped anyone and again sorry for this long writting >.>