I don't get it. If you feel that you are not up to learning new skills/techniques, why in the world would you want to start an IT business? IT businesses are based on constantly learning new things. Heck, just from a security standpoint, you have to learn new things all of the time.

I don't think you should focus on an IT business. I would recommend that, if you really want to be in business, that you focus on a different primary line of business and leverage your knowledge of IT to automate much of the operation. You will be more responsive to customer needs and you can use IT to create seamless integration with institutional buyers.

Let's look at the food truck business for example. You have a food truck that drives around selling something like tacos. Right now these guys are using Twitter or some social media tool to tell their users where they are going to be. This is using computing and automation, but one can do better. Statistically speaking you can mine data to discover the best times of day to be at certain corners. You can target customers that love reheated tacos with a database. You can create a POS (point of sale) system with loyalty cards that offer discounts. Etc. etc. All this you can do at a fraction of the cost of a competitor because you are smart enough to hack open source and build your own servers from scratch. That would be my route.