Better to learn from all the tutorials on this site before even thinking about money. There are many avenues for making money with Construct 2, from mobile devices, to game portals like Kongregate and Armor Games, to ingame purchases. These different paths to making money all depend on the kind of game you end up doing. Obviously, since you're only just learning Construct 2, those avenues are very far away, so it's best not to be so bothered just yet as it'll only get in the way of you having fun. It's nice to keep it as a dangling carrot to motivate you through the hard times (fixing bugs etc).
Try simple games like breakout, space invaders, avoiding objects with the mouse (the player object moves where the mouse moves and you have to dodge objects moving around the screen). These will gain you experience and knowledge in game logic and possibly game design. Try adding your own ideas to these kind of games. Creating games from ideas already out there is much easier since you have a solid foundation to go from. When you become more knowledgeable, you'll be able to come up with your own ideas and implement them no problem.
One of the best ways to learn is to download and play around with some sample code, to see how things are done.
Drawing is a very handy skill to have, but it's not so important when you have a great idea. If a game is fun to play using only circles and rectangles, then it'll be even more fun with nice graphics. Once you have a great idea and implement it, you'll easily find a decent artist to work on your game with you for profit share, or some form of payment.
You may even learn some drawing skills while trying to create your own paddle and ball for a breakout clone, or the player ship and enemies for a space invaders clone. I wouldn't get too hung up on the drawing part if that's not your thing. Put everything into what you feel you're best at. Everything else will fall into place as you go along.
Hope that helps some.