'04 6mt infiniti g35 shifting problem?

i have owned my g for about 2 months now, has 38k miles on it. i am having an issue shifting from first to second only all other gears there's no problem, everytime i push the clutch in and shift from first to second, i feel it grind. i take my foot off the gas before i push the clutch i still dont know whats causing it. anyone might know of any troubleshooting tips to see what i may be doing wrong?