oh sorry i was lazy to read back... sorry
This is almost always caused by two things - wheels (mostly) or wings
Let me guess you put only one wheel in front at first, but it always did what you describe, right?
So you tried to fix it with two of em.
You see parts in KSP (or in any game - as you surely know) aren't perfectly round.
They are composed of pixels.
And circles are complicated in computer imagery.
On most parts (fuel tanks and fuselages) it would look like this up close
as you can see there is flat place at top bottom and sides.
If you put your front wheel there it will work just fine.
But you are not putting it on such surface.
You are putting it on cone.
And that cone along its length is changing its cross-section.
Imagine it like placing it on tip of very obtuse angle
but the game has a rule that it cannot place items on tips.... so it has to decide one side - and the result is that your plane is wearing of course at start
(there is technique, when you disable angle snap and put two mirrored wheels next to each other, tricky but doable too)
Even though you are placing it with Angle Snap on, on some parts it is not possible to place it exactly straight.
First of all get rid of that double wheel in front.
Grab a one wheel (with angle snap on)
try moving it back and forth perhaps you can find a sweetspot on that cockpit where it will be straight.
Or rotate the wheel so it faces the back wheels and put it on fuselage section.
Try to put it as much forward as possible, but still on the fuselage.
Also it is nice you try to put back wheels close to CoM, but craft has canards and plane on its wheels is aiming up .
I don't think it is necessary it should be able to lift off just fine.
You can move em back, so it's not that close if you moved the front wheel.
Another thing that can cause what you describe are wings
I am not sure, but it looks to me that those canards are in anhedral angle is that right?
if they are that is your second cause.
(third cause could be overloaded wheel - that is not your cause trust me )
Damn i am giving away my know-how tsk tsk tsk