If you know how to surf please help me!?!

Ok so I'm ok by surfing for the first time tomorrow, (it's 4:00pm in the afternoon here) and I need to know the basics of surfing. Like how to
1.) stand up. Any tips like keep it light weight when standing up
2.) how to stay standing. Any tips and tricks for that
3.) how to pick a wave (the ones in surfing on are small waves)
4.) what to do before you catch the wave like when to turn around and paddle so you can get the wave
And 5) how to improve your surfing fast so I can go to the bigger waves.
If you know any tips and tricks,please share :)