How about your weight and balance? I have to add nose weight to mine to get it in the cg limits to fly solo.
For the 1st flight I would probably fly down the runway a few feet high to make sure nothing is strange about the handling.
When my instructor test flew my plane he made 3 passes down the runway the 1st being very low less than 10 feet agl and he proceeded up to 50 agl.
Once you determine it feels ok to you. I would climb up to a few thousand feet and do some stalls and slow flight to get a feel for the plane. You need to know your stall speed and how it reacts. If say your indicated stall is 25mph I would probably approach at 40 mph since you need the extra energy for the round out. My indicated stall is 46 and I approach at 65 and that gives me plenty of elevator authority to land at idle. I do not use power on my approaches unless I come up short .If the air is rough I will come in hot at 75 to cut through the turbulence.
I would also recommend staying on the grass. The asphalt makes ground handling a hell of a lot harder than on the grass. When I started making nice landing on grass my instructor moved me to the asphalt. It was not so easy on it!!
Do you have a preflight checklist? If not you need to make one and use it every time you fly. Remember if you forget something( turn on fuel valve) and you takeoff its not going to be pleasant!!
Give me your email and I will send you a copy of my checklist. You can modify it to fit your plane.
Good luck !! I bet you will do just fine