In this life, we cannot go at everything alone. That's why partnership is necessary.
But when you partner, better to do it right.
Make sure you partner with someone with whom you share the same values and vision. To find this out, you need to know what your own vision and values are, but you also need to interact with your potential long enough outside work environment to know theirs. It's not what they say, it's what they show
Be sure what you are bringing to the partnership and be sure what the other party is bringing. Partnership is about sharing competences and resource. Making up for each others weaknesses with your strengths
Not all partnerships work but don't let that stop you. Keep trying till you find the partnership that works