Kevin,
You are on the right track just practising - alot dont.Further cast = more swim time.
I would say if you keep doing so you will outcast a average caster with the best gear.
7ft is on the shorter side of things,but my favourite rod is 7'6 and I cast not too bad with that.
Experiment with casting off the braid vs. off the leader and length of dropback (for me about 1.5m from lure to rod tip) and lure weights.
Also practice casting off both shoulders,that comes in handy and can lead to more fishing time when you choose one side of the boat people cant cast off


I have no idea how far I can cast but I know I can cast all day and be accurate.
One of my most satisfying momments was with Kurt from Poppin Tonga,it had been a very hard day..we had changed baits alot and spots..Kurt said what have you got in that lure bag that is smaller/different..I put on a smaller lure (100g Orion Bigfoot)..he said fire it up into that break in the reef 50m away (not a huge gap) ,it landed in the middle and was eaten by a nice medium sized GT..then I had to wrestle it out of very shallow water.
The important thing I was able to put it where I needed to in order to get a bite.