Hard Starts

Hello, I have a Nissan Micra K11. He stood from Saturday evening until Monday morning at 8 am without driving. This morning he didn’t go on or started again. Lamps went on, lights worked. Now I tried again. Same problem. A little gas, then he ran. Dangers is also without problems. I already have an appointment in the workshop (I have no idea of cars), but this is only in 9 days. Can I drive or do it like this I’d rather leave my car standing? What could it be and what cost come to me?