KISS (Keep it simple, stupid).

Nix the vitamin C. Unnecessary, evidence is not great, marginal benefit if it does work.

And don't use a retinol on your face every morning, it's for use at night--it makes you more photosensitive and prone to burning. Cheapest is OTC adapalene gel. Pea-sized amount to whole face every night. Costs like $25-35 and one tube lasts me at least 2-3 months.

Every morning wear a sunscreen. Anything by Cerave, Eucerin are on the cheaper end, non-comedogenic, and generally texturally pretty well-tolerated.
EltaMD is slightly more expensive but I think more cosmetically elegant. Their facial sunscreen is fairly reasonable.
Tizo is a great one that's more expensive and even more nicer to put on.

If you tan, I'd recommend a tinted sunscreen, make sure the ingredient label has iron oxide. From cheapest to most expensive:

Cerave Hydrating Mineral Sunscreen SPF 30 Face Sheer Tint: https://www.amazon.com/CeraVe-Sunscreen-Hydrating-Mineral-Titanium/dp/B07YLKXV11/ref=sr_1_2?crid=7TC0Y5WSC01L&keywords=cerave+tinted&qid=1672965431&s=beauty&sprefix=cerave+tinte%2Cbeauty%2C106&sr=1-2

Laroche-Posey tinted: https://www.amazon.com/Roche-Posay-Anthelios-Sunscreen-Ultra-Light-Sensitive/dp/B007U54P36/ref=sr\_1\_1?crid=3L9P7MFZGJVXV&keywords=la+roche+posay+tinted&qid=1672965460&s=beauty&sprefix=laroche+posay+tinte%2Cbeauty%2C107&sr=1-1

EltaMD UVClear tinted sunscreen: https://www.amazon.com/Sunscreen-Broad-Spectrum-Acne-Prone-Dermatologist-Recommended-Mineral-Based/dp/B00ZPWR0N8

Tizo3 tinted primer/sunscreen: https://www.amazon.com/Sunscreen-Spectrum-Antioxidants-Fragrance-Free-Dermatologist-recommended/dp/B00YHMQDC6/ref=sr_1_5?crid=26PP28EUIEU5J&keywords=tizo+tinted+facial+primer&qid=1672965509&s=beauty&sprefix=tizo+tinted+facial+primer%2Cbeauty%2C93&sr=1-5