If you are considering giving up your day job, where you get paid automatically for the work done and going it alone working at home, there are a few things to consider.
If you have been made redundant or retired and this situation has occurred out of your control, it is a little different; otherwise I would say things like, can you afford to ditch your paid employment yet? Is your new business established yet? Are you earning sufficient to replace your working income? It does take a little time to build a new business even online. You may need to work at growing it part-time initially.