Yes, it is - your accent will be pretty reliably good by now, I’d guess… 
We’ve got the mini-bootcampers and some other friends calling round on Sunday afternoon - we’re about 10 minutes south of Caernarfon - you’d be very welcome to come along, and you’ll get plenty of Welsh here… Of course, you’d be welcome any other time, too, if Sunday is difficult.
I see no reason why you shouldn’t do excellently on a bootcamp - if the whole process of getting to and from Wales is okay for you, then bootcamp should be the easy bit…