?Mountain approach

Hello, I’ve been a proud owner of a brand new Smart Passion for almost a week. Since I haven’t driven a car for 29 years (until then always normal circuit) I’m a little bit heavy. My biggest problem at the moment is getting out of the garage and driving up a very steep slope. I only have a way to get out of a garage on a flat area of about 1.5 m. Then the extreme climb comes immediately. I tried it in automatic mode, there the car is almost “racked up” on 1/2 track. When I started softtips I also have the feeling that the car will stop right away. I’m coming up, but only with “Hangs and strangles”. I don’t want to shoot up, but a little more would be nice. Can someone from the professionals tell me a tip?