From my own POV
15 hours - I wondered if I'd ever get the hang of this
20 hours - felt comfortable I could fly straight & level, take off, land
45 hours - got my PPL felt comfortable going out for an hour and laning at my airfield
55 hours - felt comfortable landing on grass
65 hours - felt comfortable going to an airfield I hadn't visited before
75 hours - felt comfortable going to a known foreign airfield like LFAT
85 hours - felt comfortable doing international trips
100 hours - felt comfortable doing longer trips, like 3hours flying
I was chatting to an instructor who said that 100 hours was a nice time because you started to feel comfortable actually flying places and doing things.
I've now taken a break whilst I get married and I have to pay for a wedding.
I will start again in August. I'll then start pushing further into foreigh countries and get more foreign flying under my belt.