Accelaration problems

Honda concerto 1.5i nightfire.
Car starts without a problem, but the moment I accelerate it it doesn, t react untill I ref it a couple of times. Only than, I can change gears. After that every time I press the accelorator the same problem occurs.
The other problem is that by pressing the brakes, the rearligts and front lights will light up and the warning sound starts as if I forgot to switch off my lights.
Hope te hear from you.