I am also 25 and I to have been taking course's through coursera, I would also recommened checking out cisco's netacademy, its free and has a lot of useful information, I would also recommended studying for some comptia certifications, they are also really big when it comes to getting jobs, in the computer field.
Depending on what you are looking for you can get some hands on experience fixing computers almost anywhere. Take to Facebook and go on the buy sell trade sites looking for electronics people dont use anymore and you can get them fairly cheap or free, and just start tinkering away. If you are looking for some self pace extracuricular learning, you could also check out cybrary that is the site I use to keep up with my sec+ cert. COMPTIA also has apps you can download to help study for their tests.
Feel free to reach out, I would be glad to answer any questions and share any of my expierences with you. Most of them are still rather fresh, and ongoing. But I have been working in the Electronic technician field for about 7 years now, and the Cybersecurity field for 5, I currently hold Security+, and am studying for CASP, as well as taking some smaller certifications through coursera, cisco's netacademy. Hang in there and just keep researching.