Surfing Waves

Hi, so I'm new to surfing. Had a few lessons, been told I was ready to go "out the back"...which I think just means to waves before they break. Standing up not a problem, turning is OK but a bit slow...anyway...I'm looking to go to newquay again this weekend, but the forecast for Saturday seems to show very small waves. Checked the webcam for fistral on a similar size wave day recently and no one was out really. Am I right in thinking these 3ft waves are kind of a bit small really? And that 3ft means 3ft above normal sea level?(Nb on the days I had lessons the waves were 5 or 6ft....and we'll above my head when standing in chest deep. I'm 6'2) thanks in advance

I've surfed fistral beach before. So the forecast is not always accurate and it varies from spot to spot. In some spots, 3 feet could mean the bigger sets are overhead. While 3 feet in other spots means the biggest is 3 feet and most of the time it's 1-2 feet.

At my local spot, 3 feet means perfect days. You really gotta learn by looking at the webcam and learning the pattern. I used to surf in Cromer UK and it sucks 90% of the time. Only when the swell is in the right direction and anything bigger than 1-2 feet with more than 8 seconds interval. Or else it's just a blow out.