I have learnt that you should always try your best and don't be afraid to go up there and persuade people about things you are interested in. Also I have learnt that you get nervous in the first paragraph then you get the hang of it. Practice a lot.
If I could add something it would be a rhetorical question. I would replace a rhetorical question into the end saying I bet this convinced all you parents. I would get rid of some of the boring parts.
