Hello, I've grown my own lychee plant from a seed for about 2 years now, I give it sun and I'm getting a new pot for it, as you can see, there's a little brown spot on the first leaf, and it has turned into a little hole, I've just noticed, on the tip of the leaf, there was another brown spot, so I carefully cut that small part off before it did anything, if I need to cut the leaf off, would it kill my plant? Please help, this lychee plant means a lot to me! Thank you!

P.s, it looks like there's more brown spots....