Do I put the offerings in the middle of the pentagram or in the cauldron? And do since I plan on doing all the gods of the daily ritual, do I place more candles because some call for purple, and other colors thats … not on my altar. Also, some tips for alters is also appreciated too!
I dont think you can do an alar “wrong” thats the magic of it. This might help you out https://forum.spells8.com/t/witch-challenge-altar-design/67531 Im just a beginner but for me personally I put my offerings on a dish and the cauldron is more for crafting. As my aunt told me once “you do you boo” I think the main spells8 site has some info about creating altars too. Have fun 
If you come across a spell requiring a purple candle, you can either add the candle to what you already have set up, or you can clear off the others and just use purple candle(s).
What do you feel comfortable doing? Will you want the offering space for something else in the ritual? It can vary if you want it to.
the plan was to put the candle in the middle of the pentagram, along with the offering plate