What are essential vitamins someone like me should take? im 20yr old male 59 230 (starting weight loss journey) who stays in most of my days due to online schooling. i want to make sure my body is getting enough vitamins?

For most people living in developed countries, and many people living is less developed countries, vitamin supplementation is not needed. Work on getting your nutrients from basic, unprocessed foods. Start with adequate protein, calcium, vitamin D. Take a look at https://www.myplate.gov/

A typical well balanced diet in USA does not require multivitamin supplements, but since many folks have low vitamin D levels, would suggest sunshine 20-30 min daily or supplements at 800 IU per day. Your regular doctor could address your dietary needs during weight loss "journey", as changes in caloric content could be associated with different nutritional needs.