You'll get used to it. I know it's hard, but it is a huge change in lifestyle (if you do it correctly). Remember the scene in 'Interview With A Vampire'? Once bitten, the victim's body dies before they are "reborn" into their new vampire state. Well, that is what is happening to you. Your old life is "dying" as your new life takes hold. Once you fall asleep thinking of the current or next project... or... your next destination... or... just dreaming of a weekend sitting in a marina having drinks with your new friends, THEN your transformation will be complete.
There are downsides.
You may lose some friends; people that you used to spend weekends with that you will have to leave behind as you will begin to run out of time to play with them.
You will have to say goodbye to nearly all of your current hobbies. There is no time for things like cycling or R/C car racing with a boat.
Next, your yard will go to Sh*t. Who has time for yard work when you go to the boat every weekend?
Finally, you will need to adjust your income and budget priorities. It will take some time, but you will need to manage your money and steer most of it to your boat because no matter how expensive you think owning a boat is, I gaurentee you... it is TWICE that in reality.
HOWEVER... EVERY BIT OF IT IS WORTH IT!!!! Don't give up. It's okay and it is normal. We all went through it. The first time you lean back and put your head under the shower at home and feel the room swaying around as if you were on the boat... You know you are onto something.
Keep us posted.