Urgent - bedroom full of moist/mold

Hello all,

English isnt my 1st language so sorry upront.

In my bedroom where I sleep daily wall got wet, moist, mold has started growing in the last 7 days.

Im regulary heating my room but the mold keeps growing. Started opening my windows every day now.

It all started cuz my roof is missing a few tiles and its leaking on my attic. My knowledge in construction and house things is very low sadly and my friends live in another town.

I bought an spray against mold on walls, but my friend advises me not to use it cuz the wall is probably still wet and it will just worsen the situation..

I know I need to fix my roof, but the cost is big and I dont have the finances to cover it right now sadly..

Question / tldr :
Can I get rid of the mold myself at least for a month or two, so I dont have to inhale it every night. I need at least a temporary solution.

https://preview.redd.it/dk31cz0t7p3e1.jpg?width=6120&format=pjpg&auto=webp&s=ae87eab06eb7a44882b05fda4de8bafaf4513e79