Farming requires much clicking, the faster you can click the faster you will be able to farm.
*Tele to catherby. From here head north to the farm patches.
What to do:
*First use your rake on the allontment or the weed looking things lol. Do this until you reach 45 farm. A fast method that i found was that once your inventory is full while farming use the tele to catherby to save running south to bank. Once you reach 45 use the spade on marigolds. A quick method would be to put your spade all the way on the left in your inventory. Then put it one spot up from the bottom. This makes it so when you right click you rmouse will already be over the use option. Do this until 70 or 75 whatever the herb patch requires. Than do herb patch until 99. Good luck and I hope this guide helps