I need help in regards to what order my face stuff should be applied in.

For daytime, we suggest applying vitamin C serum first, followed by your hyaluronic acid serum, and finishing with your B5 serum and broad spectrum sunscreen.
At night, continue to cleanse and tone as usual, follow with retinol, then hyaluronic acid and B5 serum.  Make sure you apply the retinol onto clean skin and wait a few minutes until the product is fully absorbed. We also recommend following with a product that contains active ingredients like ceramides and fatty acids to help increase hydration. This can be found in SkinCeuticals Triple Lipid Restore 2:4:2. Clinical studies have displayed that this product helped improve the tolerance of retinoid therapy and subjects saw a significant improvement in dryness. 

The rule of thumb is to apply products from thinnest to thickest. My suggestion for AM would be cleanse, tone, Vitamin C, hyaluronic acid (if skin is dry and/or dry/cold weather conditions), moisturizer, sunscreen. PM regime would be cleanse, tone, b5 serum, moisturizerI would also suggest adding in an eye cream to help protect that delicate skin as well! Any left over on your finger can be used as a lip moisturizer too!

Great questions! As a dermatologist and former magazine beauty editor, I would say that you could definitely simplify your skincare routine without compromising skin health and radiance. First thing to consider scrapping would be the toner - very few dermatologists recommend toners at all, except perhaps for the oiliest skin types. But in general, after gentle cleansing, it's nice to apply the most active and proven ingredients FIRST (that would be vitamin C in the morning, retinoid at bedtime), followed by whatever other topicals you want, starting with the lightest texture and moving toward the heaviest /creamiest texture. But it really doesn't take 17 layers and steps to have healthy skin! Most terms just do an antioxidant (like vitamin C) followed by sunscreen in the morning and a retinoid followed by moisturizer in the evening. It must be said that everyday sunscreen (+ reapplications every 2 hours if you're staying outside) is the most important step of all for beautiful, radiant, healthy skin over the long and short term.