Main thing is ride better: your arms and legs account for the vast majority of your suspension; learn to pump the arms and legs as much as you can, pull the front over bumps before it hits them, get out of the saddle as much as you can, ‘pack’ through lengthy rough sections, let the bike pick its own line, etc – concentrate on keeping your head and chest moving in a perfectly smooth path whilst the wheels track the ground without any sharp impacts.
Next stop: bigger, softer tyres (though you’ll want fairly sturdy sidewalls – and ideally wide rims – to avoid it being too bouncy on bumps and wallowy in corners); you’ll get up to 2″ of travel there. After that, it’s small fry – if you haven’t pretty much sorted it with technique and tyres you’re not going to sort it.