Agree with Area10. Get a professional repairer to fix it. It could even cost you more doing it yourself by buying more than enough epoxy, sandpaper, tape etc. Especially if you have to start doing it over again!
If it was on the flat section of the board I would say yeah, do it yourself. That's how I learnt.
Like Colas said. If you do it yourself then get good epoxy from a marine repair place. I have used Araldite & other epoxies from hardware stores & it can be a pain. Especially if it doesnt harden like glass. It clogs sandpaper!
Once fixed your crying will be forgotten. Lol.