Mika, I think it is fine that you are doing this on you own. It is certainly more of a challenge than having someone else fly your plane.

If you built the plane according to plans. I would not make any big changes. Rather, you need to adjust the trim on the control surfaces. You can use the radio at first or you may have to adjust the clevis fittings also.

Make the first few flight in very calm winds, that will help. Try to make slow gentle corrections with the controls, give the plane time to react.

Good luck,

Tom