Your tongue extension is not very long to make that much difference with all the work of extending it. Looks like you only get between 3 and 4 feet, if that!
I’m looking at the hull almost up to the trailer bow chocks and the winch location. The winch should be level or higher than the bow eye when the hull is in it’s final resting place, so that area of your trailer setup is good.
Your boat sits very low on the trailer, this is good and the bunks look good.
Now, with you showing me what is happening on the launch ramp between the trailer and the hull says that your launch ramp is very steep!
If the bow is hitting the trailer crossmember then the trailer is not deep enough into the water. The hull must not hit or touch the trailer. The hull comes in contact with the front ends of the bunks first and as you winch the hull forward and UP the front of the bow comes in contact with the 2 rubber chocks in front of the winch.
The small roller right under the bow is the trick to everything!
I look at your photo and I visualize everything in the photo as being in the water. The water is level and the hull is level floating on the level water, if the trailer is deep enough in the water, the very front of the submerged bow just clears the crossmember under that small roller. This roller would be just sticking up out of the water. As the hull comes in, it would make contact with this roller right at the top of the hull paint area and not allow the top of the bow to come in contact with the trailer chocks in front of the winch. The winch would lift the bow up this roller, out of the water, and just a little forward due to the slight angle of the front of the bow above the waterline. This small roller would act as a stoping point for the bow from going forward under the winch area.
It looks like it just might clear but, because of the angle of the launch ramp and the trailer sitting with the hitch much higher than the tail lights the winch area would now be directly straight up above this small roller. So this roller is too far forward!
This is what I would do first.
Get the hull forward on the trailer so the bow is in contact with those 2 rubber trailer chocks. The bow eye will now be higher and just about dead center between the 2 chocks and almost level with the winch. Remove that small roller and place it under the bottom right at that crossmember where you say the bow now hits the trailer. Set this roller just high enough so it does not make contact with the hull, say about 1/2 inch below the bottom.
Try this setup to see what happens!
I’ve attached 3 photos;
the bowroller is far back under the hull, this roller makes contact with the hull out 4 feet from the winch, pulling on a bow line the hull rolls up the roller to a point about 18 inches from the trailer bow chock which is as far as I can pull and lift the bow by hand, I use the winch to pull and lift the last 18 inches. This small roller lifts the hull above the ends of the bunks and reduces friction between the bunks and hull until the hull starts to make more contact with the bunks.
the rollerdistance shows this little gap between the roller and hull when the hull is in its final resting position on the trailer. This gap allows the trailer to flex a little over rough highways without adding pressure at this small point to the hull.
the rollerramp is what it looks like. If the roller moved back under the hull doesn’t solve all your problems then a series of rollers would be needed to lift the bow in steps or a trailer ramp, like in the photo and this is what I would spray with the teflon.