Going to a mechanic to get your car issues fixed seems like an easy decision type decision, but there are actually some repairs that can be done with some quick DIY.
One of the easiest DIY repairs you can do on your car is to fix a dim headlight. To restore the brightness of dim headlights, simply clean the ground connection. Also, use some dielectric grease. Alternatively, if you see a gray/brown film on the inside of the glass, replace the bulb.
You can also check your engine light codes on your own. It is not something you have to pay for or get too stressed about. You can simply purchase a code puller and make the checks yourself.
You might even be capable of replacing your car battery on your own. Before removing the old battery, make sure you have a jump box (basically a portable battery) and attach it to your terminals – this will save your radio presets and other information on your car. Remove the battery hold down and the terminal connectors. Install the new battery (ensure it is rated for your vehicle's make and model), then reinstall the terminal ends.
You can even complete an oil change on your own. All you need is a new filter, enough oil to fill the crankcase, a catch pan for the old oil, and a wrench or socket and ratchet to do it yourself. Remove the oil filler cap by opening the hood. Slide the catch pan under the car and position it underneath the oil drain plug. Remove and set aside the plug. Replace the plug and wipe it down when the oil has stopped draining. Now, take out the old oil filter (with the catch pan under it). Enable the oil to drain before lubricating the gasket on the new filter with clean oil. After you've installed the filter, you can begin filling the engine. Fill the filter with enough oil to show full on the dipstick, then crank the motor. Check the level on the dipstick again, and top off as required.
Finally, you can also do a brake replacement on your own. Many modern cars, which have disc brakes on all four corners, need brake pads and likely rotors, but some budget models do use drum brakes in the rear, which means you'll be dealing with shoes and drums on that axle instead. First, remove your wheels, then compress the brake caliper. Next remove and inspect the current brake pads. Be sure to check if they indicate any wear to suggest other damage to your vehicle. Next, install the new pads and refit the wheels. The final step is to perform a safety check to make sure the process was completed properly.
If you wanted to do a big project in your kitchen, you would likely use a business like Creative Cabinets and fine Finishes so big projects on your car should also be left to the professionals. However, there is no reason why you can't get hands on with the smaller projects in the meantime.