Newbie: SB-Box with given media + microfiber cloths (Corona Edition)

Hi, I know these topics are like sand by the sea and you can read into the topic for months, but I don’t find anything that isn’t 1000 years old and could fit my problem. I have a new car, deluxe white, 5000km on the clock and it’s dirty like sow. Drive almost only highway to work. Since I have little time and now with Corona I don’t get all the means I need, I have to take what I can get. Means: SB box and microfiber cloths + two buckets. I I don’t have a Gloria o.E., autoshampoo, rim cleaner or insect remover. Now my question: do I get the car well with the given means (SB-Box allegedly has XXL power foam; it is in Regensburg, has never been washed here) neatly clean and don’t mess up the paint if I don’t completely stupid instead? If so, how should the procedure be? I don’t have a rim cleaner, no insect agent, just the foam and the water out of the box. I now put the two buckets 1x with foam, 1x filled with clear water, the car first roughly cleaned with water, then sprayed everything with foam, let it all work, everything with clear water down again and then would have latched me from top to back down with the bucket foam and microfiber cloth until everything is clean. Rims then at the end. Then I would have felt the microfiber cloth again and again in clear water to get all the dirt out. Look forward to tips that could fit my scenario.