How do I bloom gelatin powder or make jelly/jello?

I bought Dr oetker gelatin powder and couldnt get it to bloom and idk what i did wrong. Can someone give me step by stem instruction on how to make jelly/jello with 250ml strawberry flavoured drink, 250ml water and vanilin mixed with powder PLEASE... Im so confusedhon how to make gelatin or jelly/jello... I wanted to make one of those juice jelly/jellos but instead of juice i wanted starwberry flavoured drink instead but its really light so I decided to add 3g vanilin to it but god idk if im even supposed to add cold or hot water to gelatin, i did 100ml cold water w 6g gelatin it didnt set so i looked it up and it said to microwave it and i did... (Hope i wont regret later) it became worse and now im just gonna put it in the fridge in the hopes of it macigally transforming and becoming jelly/jello. submitted by /u/Ivanq0l