Yes I am in my 3rd year of college. And I am in a field which doesn't require too many presentations rn. But I was head of big module in my college's tech-fest, and standing there leading a team was stressful. But everyone was patient which made things better. I began to realise it was me who was scared of the mocking, which I am glad no one did. Just take it one day and one presentation at a time. Those people to who you are presenting, know that you are smart and work hard. They know your deficit and are willing to be patient with you. Take the leap my man!