For me, having an idea for a project, and having that project work out well definitely makes me happy...for a while. But it all depends what you want to achieve

For me, having an idea for a project, and having that project work out well definitely makes me happy...for a while. But it all depends what you want to achieve. A goal of earning $X per year seems a bit hollow, so unless that means a lot to you personally, it's unlikely to make you happy if you achieve it.