Too much wind is whatever wind is too much for you & the particular model that you are flying --- simple as that.

It is dependent on the pilot's skill & comfort levels, & the airplane's physical characteristics. Any one pilot will have differing wind limits depending on the airplane. Similarly, any one airplane type will be limited by the individual pilot's capabilities.

Having made that earth-shattering revelation -- if you don't learn to fly in the wind, you won't be able to fly in the wind -- meanwhile, your "windy" buddies will be having fun.