So I’ve been researching on what the problem with my transmission could be and this is what I’ve found out and concluded

On start up the car will make a whining noise which I have found to be the noise caused by a transmission pump after watching some videos of others with the same noise. After checking the fluid it is red/pinkish when on my finger or paper towel and smells like sour but not burnt (when it was all removed into a pan it looked like chocolate not sure if it was the light or the container but it definitely looked darker than red when it was all pooled together)

Container was a slightly blue tinted clear one

There is not burnt smell front transmission when on

Where first turning on it will move fine in all gears but once I rev it up to the point it should shift into second it will slip into neutral and stay there. The car will not move at this point and is stuck in neutral until it is let to sit and cool down for a little where the cycle repeats.

Any suggestions would be greatly appreciated