You will quickly get used to it using the tips above.
The one time I still struggle is when starting halfway up a very steep hill, say >= 15% gradient.
This kind of thing ...
In such a case it is very easy to grind to a halt and fall off. What I usually do is hang on to a wall, telegraph pole, gate, (whatever), clip my feet on the pedals and get the right pedal to about the 2 o/c position. I give myself a shove off with my left hand and push down at the same time with my right foot. That is usually enough to get me started.
On exceptionally steep climbs, say >= 20%, I either go back down to the bottom and start again (if it is not too far), or I try and find a side road or farm track to emerge from. That lets me get moving before turning up the hill. If no such side road or track is available and the road is wide enough, start across the road and then turn up it once moving.