Hey what I usually do everyday is a warmup lesson then a daily practice lesson then other technique lessons I think I need (all of the above from this site) and then I go onto sing my own originals or practice singing covers trying to apply the technique from this site into those originals/covers but I'm often not sure I am doing so? How do I know if I'm singing right with good technique? Also do you think the above routine is good? (Bonus question/sorry): Any tips on how to mix up the lessons on this site for optimal vocal growth?

Sounds like a good routine, Daniel! Please see here for ideas on how to apply technique to songs.

Thanks so much! Any tips on how to mix up the lessons on this site for optimal vocal growth? Is it better to have a "perfect" routine of exercises that you go over every day that you focus on mastering or keep changing the exercises to keep your voice "on its toes"? 

Good question! My thought is that your daily warmup should always include something semi-occluded (lip trill, straw, NG, etc), something to work your mix, and something wide-range to train smooth transitions. After that, you can work on any specific skills (ie: vowel tuning, agility, range extension, sustains, volume, etc). It's helpful to have a goal for each practice session!