Lewis Hamilton opened up about the disastrous Las Vegas GP. Following the conclusion of the race, the seven-time world champion summed up his weekend with Ferrari as "terrible" and revealed that he tried everything to improve his performance.Hamilton had a weekend to forget after the British driver was out of the qualifying in P20 on Saturday, and then went on to finish the race in P10. Even though he improved in the race and picked up a point, it was far from a performance generally expected out of Lewis Hamilton.As the Briton had the worst possible qualifying and an average race on Sunday, he did not hold back from sharing his disappointment. Sharing his thoughts in the post-race interview, here's what he said:“I feel terrible. Terrible. It’s been the worst season ever and no matter how much I try it just keeps getting worse.. so yeah. I’m trying everything. Everything, in and out of the car.” (via Sky Sports)Hamilton's underwhelming time doesn't seem to end as the former Mercedes driver has yet to pick up a podium at Ferrari. His only notable performance came in China when he won the Chinese GP Sprint in March this year.Compared to him, his teammate, Charles Leclerc fared better. With seven podiums, and a pole, the Monegasque driver has been the leading Ferrari driver this season.Lewis Hamilton's spree of disastrous performancesLewis Hamilton had one after another frustrating performance with Ferrari. From disqualification, DNF to Q1 elimination, the seven-time world champion has seen it all.Lewis Hamilton of Great Britain driving the (44) Scuderia Ferrari SF-25 on track during the F1 Grand Prix of Las Vegas at Las Vegas Strip Circuit - Source: GettyHamilton started his journey with Ferrari with a P10 in Australia, and then went on to have a disqualification in the very next race in China. After a series of average races, the British driver finished the Hungarian GP in P12, and had a DNF in the Netherlands, right after the summer break.Prior to the Las Vegas GP, Hamilton had yet another DNF which summed up his season pretty much. After 22 races and five sprints, Hamilton is in P6 of the Drivers' Championship with 149 points, 73 points behind his teammate, Charles Leclerc.