Yep I agree with Blackend! It is so much easier to learn to ride when properly powered. Trouble is you have to get the brain to accept that it is a good idea to tie yourself to something that could hurt you. You just have to commit and still TCUP. Imho the best way to help your brain over this stage is improve your kite skills.
At 100kg, ignore winds below 15kn on a TT, especially as a learner. Take it from me, it's just frustrating for us larger humans.
Hence for those who are serious I recommend planning a quiver from the start. Then buy the largest and the smallest. The largest for the water and the smallest to use in relatively light conditions on land to develop kite handling skills before hitting the water. But this is coming from somebody who learnt a long time ago when lessons or instructors did not exist! Also the kites were more likely to kill you if you tried to go on the water without good kite skills!