I tested positive for covid on the 27/12/2020 and i'm at an isolation guest house bought a few meds is there anything to worry about?

You should be fine: Given your age of 30, the disease leave you without severe effects. Take tylenol for fever control, drink a large amount of liquids and decrease your physical activity. Rest. If temperature is above 103 for 24 hours or you have severe shortness of breath, see a doctor. The worse symptoms are generally within the first 36 hours. A dry cough, loss of smell or taste may last for a few weeks.

COVID 19: Make sure to quarantine. Rest, hydration, acetaminophen, decongestant, cough med & nasal saline irrigation may help mild symptoms. If NSAIDS are used consider Naprosyn. Get emergency care for difficulty breathing, blue lips or face, significant & persistent chest pain or new-onset of confusion.