Do #2. At this point in your career you need a variety. Since you have 2 years of experience but are still disappointing people in interviews it suggests that you haven't taken on a wide variety of skills. After a few years of #2 (ask them what their turnover is like,) you will see a lot of businesses, learn about a lot of business models and also see a lot of the country. The power that this will give you as a mid-late 20something is FAR superior to being the lowest person on the startup totem pole. Also, if you continue to live with your parents then you should have a massive runway saved up by the time you are ready to drop out of consulting -- then you should also have the experience and capability to start your own thing.

You should not take bad pay and bad options to be a junior dev in a SECOND startup. It sounds like you didn't learn your lesson the first time.

In short: you have done a startup, so you know it is what you ultimately want. What is the best strategy to position you into founding in the future? I contend that it is actually #2.