Hey, man!
Coupla quick steps here, assuming you're in Canada-
If you are hating the car, I recommend you sell it and upgrade- but not for that much money. You'll likely be able to pick up a 2011-2012 model with around 96,000 kms for around $7200, give or take (depending on what you choose.) You mentioned in your post your price point is around $5000, so that might bump your clicks up to around 120,000 kms, maybe a year or two older. In order to help you with selection:
Log into your local library, see if they have a copy of the Lemon-Aid guide for 2015-2017. In e-book format, preferably. Take it out, read the sections on most reliable/best used cars. It'll go back in years far enough. Let go of attachment to a particular manufacturer- instead, look at the aspects you love (mileage, reliability, etc.) Check if the library have a subscription to Consumer Reports online- if so, use the data from there and cross-reference it against what Lemon Aid is already telling you. You should arrive at a short list of about 7-10 models from various manufacturers that hit the spot, along with target years to look for.
Now, take your list of years and models, and check for copies of the Canadian Black Book and Canadian Red Book at the library. Take them out, or just take pictures of the relevant pricing pages for your models and years. That should give you approximate pricing windows.
Now, set a Kijiji alert for your target models, years, etc. tailored specifically to you. You have to be in 'Cars' section of the website to be able to narrow by manufacturer, year, kms, and dollars. Watch them roll by for a few weeks to get an idea what people are selling for what.
When you see a car that hits the spot, head over, inspect it, test drive it, and pay for a pro mechanic inspection if you're seriously interested.
You should be able to get what is essentially a brand new (to you) car for that much, if you keep your eyes open and buy a well-researched option.
Hate to say it, but you may have gotten a little hosed for $6500 for 200,000 kms in the past...
My friend recently got a 2011 Mazda3 with zero rust and a full maintenance record with 92000 kms for $7000+tax. I'm insanely jealous of that car as I roll around in my grandma's '99 Chevy Metro that I offered her $500 for 2 months ago...