Better yet, come to that realization before you leave, and stay on shore. You need to understand two things. First, you need to understand the body of water you paddle on. This takes knowledge which you can gain from books, magazines, videos, courses and experience, which comes from spending time on the water. Next, you need to understand your own limits.
Many people are in denial about their own level of ability.
Typically, they tend to over-estimate their abilities. Set your ego aside, and consider the consequences of poor judgment. If you haven t already read it, read Deep Trouble. We don t all have to nearly die we can learn from the experiences of others. If you don t have a good match, change plans.