I am not a fan of google adsense. For one you need an insane amount of traffic before you can make any meaningful income. E.g there are some ads that pay 0.01/click so assuming you want to make $200. That will be about 2000 clicks and $200 is not even a sustainable income. And my math is not an exact calculation, just estimates. The fact though is that you need to do a lot of work in order to make some money.
Another reason it is not a good idea is the fact that upon all the dirty and tiresome work that you do from building your site to getting thousands of visitors to it, your account can be cancelled by google at anytime for any reason they feel suspicious of.
I will suggest you build a real business online. Find some product to promote and the same tedious work of building traffic can bring you a better return.