The Leeds-born player was a professional from 2015 to 2019 and came close to regaining his tour card since his relegation.
However, the 28-year-old showed great class as he successfully navigated his way through the second Q School event of 2022.
The player kicked off the event with a 4-0 victory over Mark Bell, before whitewashing Aidan Murphy in the third round.
Lam powered past Tyler Rees in the fourth with a 4-2 victory, before sealing his place in the final with a narrow 4-3 win over Kurt Maflin.
The final itself proved dramatic as Lam took a 3-1 lead but couldn't prevent Steven Hallworth from making back-to-back breaks of 92 and 77 to level the match.
In the decider, Lam showed great composure as he knocked off his own break of 60 to take the win.
Speaking to Planet Sport, Lam said: "It feels amazing. Just relieved really because that was a tough Q School. Just happy I got through.
"I managed to keep myself relaxed. Just stayed in the moment, took one ball at a time."
"I try not to put too much pressure on myself. But it feels amazing to be back on. I've a few years off now and had chances to get back on only to come so close. Just delighted to get on."
When asked about his plan going forward, the player known as 'Panda' added: "No plans for now, just go home and relax. See how it goes."
Lam's best run at a ranking tournament came back in 2017 when he reached the fourth round of the Gibraltar Open.
The Leeds-based player will now have an opportunity to go one better.