I think you could either do the 4 star or another trainer--either way, I don't know if you're ready to be considered "solo" yet or not. Both times of "bad luck" were your first two times out without an instructor, weren't they? You can blame it on the wind, and I've seen wind knock good pilots out of the air, but you really still have a lot to learn about how to handle windy situations. more experience, and you might have not been "blown" down today. I say you can get the 4 star because it's really a low wing trainer anyway, so you can probably handle it IF (and it's a big IF) you do indeed get on a buddy box for some more lessons. And, make sure you get some lessons in the wind as well. You will not master all flight conditions before you officially "solo," that is why a lot of second planes get crashed. But, you should learn to deal with as many as possible so that this hobby doesn't get any more expensive than it has to!

I can handle cross winds much better than head on, gusty winds (when landing). Gusty headwinds (while landing) get me because I get on a glide slope, and get used to the wind, and about 5 or 10 feet off the deck the wind will lay (it never fails), and my wing will loose lift. Learn a couple of things about wind--crosswinds are conquered by the rudder, and with gusty headwinds, just keep the nose down while landing for as long as possible--this keeps the airspeed up without relying upon the incoming wind. Then, flair at the last second. constant head winds are much easier, and are no problem at all, because they allow your landing approach to be predictable. Taking off in any kind of headwind isn't really a problem for me--just maintain your power, and try to stay on a nice, low angle of climb and you should be fine. If you try to climb too fast, then yes, your wing will balloon, and eventually stall. If this happens too close to the ground, it's dirt nap time. Try to keep your leading edge down as much as possible, while still climbing out. This forces as much of the headwind over the top of your wing, instead of under your wing. When all of that wind hits the underside of your wing, it will cause the aforementioned problem.