None of my business, but maybe you should focus on what’s causing you to fail in school first. I get that it’s the summer, now, and there’s no classes, but if there’s certain subjects you’re falling behind in, there’s resources online to get caught up in those subjects before the fall. What’s your situation? Maybe I can offer some advice.

You could hold a yard sale and try to sell your stuff, but you should talk to your parents first, because… they might not appreciate that.

Depending on how old you are, there might be businesses offering part time work over the summer. What the age limit for that is, and what additional requirements there are, will vary based on where you live.

Do you have any potentially marketable skills? For example, web development for small businesses is something you could potentially offer that would pay better than yard work and generally be less tiring.

If you’re a high schooler you could always apply for a job at a local business

Provided you’re old enough that is

I’d recommend trying to figure out why you’re failing out of school, school is pretty useful.

Or you could look into picking up a hobby to take up some time with something you could enjoy. Drawing, 3d modeling, writing, reading, cycling, tabletop gaming, photography, etc.

There is plenty of work out there if you are willing to look and put in the effort. We all have to start out somewhere and selling your personal items (whether they be junk or not as you say) could bring in a little revenue through yard sales and whatnot, but it is important to further your education and up your communication skills as those are what will get you into better paying jobs in the future. As for myself while I was in high school, I didn’t really need a lot of money because I had no bills or anything to pay for.

I did make a pact with my parents that they would pay me a certain amount to do extra chores at home. Maybe your family will do the same if you talk to them about it.

I also had a dishwasher job at age 16 in a restaurant that I did on weekends. Like I said before, if you are willing to put in the effort you can make money. But at your age money is less important than your education, so focus that first in my opinion. Good luck on your way to adulthood!

The fact you’ve made it here onto the fediverse suggests you’re pretty tech savvy. Have you considered offering tech support services locally? There’s probably loads of older folk around who would appreciate someone who can sort out their laptop, set up their printer etc.

You could also try a specific subset of this if you wanted to optimise for reputation and cash - e.g. Get good at setting up mesh wifi systems like Amazon Eero and then sell your services locally as an installer?

Go be a cleaner. You shouldn’t have any trouble finding work but it’s hard work.

A lot of folks aren’t tech savvy and/or do not wish to bother with selling items in the local market (think craigslist, facebook market nextdoor). For a small fee, you can charge individuals for coordinating the posting, selling, and delivery (if possible) of their items within your local community.

First off, do what you can to not fail out of high school. The job market can be tough, it’ll be even tougher with no diploma.

As for money, I’d recommend flipping items on marketplace / Facebook. Lots of people out perfectly serviceable furniture, appliances, and electronics that may need small repairs or a good deep cleaning. If you have a vehicle, that might be a good source of some income.