You are welcome to reapply, but you have to overcome those objections. You haven't travelled anywhere requiring a visa as strict as Canada, you don't have a lot of money, you don't have a strong job or other evidence of ties to your home country, and your purpose of travel didn't make sense.
Basically, the visa officer thought you were coming to live in Canada and saw nothing in your background to be convinced that you'd leave.
You may want to travel to the US or EU or Britain, or Australia or New Zealand, to build up a travel history before applying to Canada again.