I don't have a Mini SE, but do have a Mini (1) and had no issues with video at all. Having the right SD card is first thing to get right. To shoot up to 4k video - you can't use an $8 SD card - plain and simple.
You say you re having issues with video, like what specifically. Being generic helps nobody help you. Have you contacted DJI and opened a case with them. Not every drone made by a human is 100%. My Sandisk Cards for 128 were like $25 and that is not expensive as some SD cards are like triple that price and not required by the drone.
As for flying in wind - all drones have issues in wind above 10 mph. The smaller the drone the more problems. My
Air2 can handle 20-25 mph winds, but it's not happy about it. Battery levels drop quickly as the drone fights the wind to stay stable - much less trying to fly forward into a head wind. The Mini series is inexpensive and easy getting into drone flight and doesn't have all the capabilities & bells / whistles the Mavic's or others have like the
Air2 / S. Expecting it to do so is not going to happen and unrealistic.
Instead of getting mad, have you READ the manual and watched some beginner videos on the SE? I guess you watched one where some guy flew fine in the wind, but that says nothing about what you are attempting and HOW you are going about it. Flying a drone takes time to learn how it operates and reacts in many situations and the SE is at the bottom of the list pretty much - maybe the Spark ot older DJI drones are less capable.
If you are having flight issues, you can post your logs on the forum for the guru's to read and they can explain what is going on - either by the drone or the pilot. Post them and lets see what is going on. Also contact DJI if you think there are major issues with your drone - they can help, but will need non-generic info and the logs as well.