Both Aries and Capricorn are what we call cardinal signs of leadership, so you are hard-wired to achieve, it can't be helped. Virgo rising makes you appear less ambitious and more practical and reliable to people, and Virgo influences will make you easy to communicate with in life. That may be the saving grace which helps you seem like a team player, so others are not threatened by you. I think that is the problem?
Aries means you want to be first, like attention, but also have original ideas. You wouldn't have the patience to carry them out if you didn't have a Capricorn Moon. It's an emotional moon sign which means you crave security. But also, Virgo and Capricorn are Earth signs, so there's a way for you to relax--in nature. Try to go camping, or take trips to the beach and woods when you can. Nature will calm you and give you the best results for relaxing you need to be so competitive.
I think most people perceive you as serious, even with the Aries Sun. Try to strive for balance in your life. You also need a good diet and exercise with that Virgo rising, and you may suffer from IBS. So be careful about that. As long as you find a way to relax, you'll be fine.