I have taught maths, biology, chemistry and psychology to various ages of students as well as having coached tennis to students who were 5-years old all the way up to adults, so I have seen it all! Teaching has given me a variety of qualities suitable for being an online tutor - the main ones being patience and an understanding of different learning styles. I am still in university myself and therefore I have grown up in this modern era of technology being used for education therefore I know how to use it to our advantage. Our lessons would take place either online or in-person but that doesn't mean I can't still recommend apps or websites that could still help you even outside of teaching hours. I can employ different methods to help you learn and am not afraid to experiment and spend time on my own trying to figure out what learning technique might suit you best.
From my experience, I have realised that the best form of learning is actually through practice so our lessons would revolve around actively working through different problems and questions you might see in an exam and then figuring out how to simplify the tougher questions together.
Biology, Chemistry and Maths are all subjects I have a lot of experience with. I have found some parts of them easy, and other parts very difficult (especially maths!) so I have been through all the ups and downs forcing me to figure out how best to understand those subjects. Hopefully I can help you figure it out as well!