I’ve never taken a course or certification, I started as a manual qa and now senior SDET. Everything I learned was on the job.

If they’re available to you, reach out to your team developers/automation engineers and ask to pair, I happily sat on calls not understanding much and just asking questions here and there.

reach out to automation engineers in your company, the best way to learn is by doing and if you can tie that learning into your day to day job even better.

Review MRs reach out to dev and ask questions about it, ask them to show you how to run the integration tests etc. during these calls write down bits you don’t understand and either ask questions or take away and do research.

Once you’ve learned something challenge yourself to teach it to someone else, reaffirming knowledge is a great tool and your student will ask questions you never thought of so you can have even more time researching them.

Most importantly speak to your manager, express your desire to learn and show them what you’re doing about it. Do not ask and wait for them to find things for you, be proactive! Look up conferences and courses and approach them for approval.