You might be able to do a degree as a mature student, only need SPM. Check out some Uni / College.

On the dip courses, sustainable energy and autotronics sounds interesting. Also Machine Tools Maintenance and Cybersecurity. Sustainable energy may offer work in Solar related, may become installer later. Autotronics - more electronics in cars, so also possible jobs, own mechanic shop. Tools maintenace got jobs, even robots need maintenance. Cybersecurity - just read lowyat know how bad internet can be.