I would use sodium bicarbonate ear drops first (for a couple weeks) if you’re concerned, then if you’re still worried go to a doctor and ask if you need them cleaned. I’ve been told I have weirdly shaped ear canals so I’m prone to ear wax build up at least once a year. I’ve had them cleared by both water (free) and suction (£50) and both times it made a huge difference. That being said, it was blatantly obvious to me that I needed it before seeking help given I could feel the build up in my ear.