The choice to join forces (or not) comes from the very beginning of the company's creation. A partnership makes it possible to combine financial resources and skills while sharing responsibilities. You will not be alone in the many pressures that comes when creating a business. But a single entrepreneur will have more freedom and will not have to share his earnings. It is recommended to partner with someone you have already worked with to ensure your "professional compatibility". You must share the same vision of entrepreneurship for it to work. To do this, communicate your respective objectives and interests.
Do a skills analysis for each person. Partnering can also be more challenging!
Trust, respect and honesty are the keys to success in a partnership.