Help Comes from Those Just Ahead on the Journey
While a professional teacher or lecturer is the ideal solution for tuition, often all that is needed is a person who is a little further down the road. For example, a student studying GCSE maths could be helped via Wizelp by an A-Level maths student. A first-year undergraduate studying engineering can be tutored through a maths problem by a second-year student. A third-year undergraduate who is at a point where few books or online articles explain solutions can be talked through the assumptions made regarding a certain economic model by a masters or PHD student. Students can receive from those ahead of them and give to those who are behind them on the academic road.
Of course, the people who can give help in this field is not limited to other students, tutors or lecturers. There is huge amount of people who have trodden that hard path of education, moved into a career and have gathered a vast amount of practical experience on the way. How useful as an engineering student would it to have been to be able to ask an actual engineer about your problem. This applies equally to any profession be it a doctor, a journalist or a solicitor. Plus, you can always choose to get paid for the time you put in.