Well you are about 9 years too late but you can still start now.
However keep in mind you got crazy competition against you. So crazy that in the last year alone, it was very difficult acquiring GPUs at MSRP even. eBay and Craigslist were selling GPUs that are 2x of what they were worth about a year ago.
Also you need to have competative electricity rates, if you are paying $0.20+ or more per kilowatt of power then you will have a hard time getting your investment back and are just better off buying the coins and holding for the future.
9 years

wtf
We are in the Altcoin Section here.

And yes it is still profitable.
Don't believe the guys, who just check whattomine and never mined anything.