Don't worry about XP, mindread everything that moves
Every time I was offered a quest reward choice that had XP, I took it because I was worried I wouldn't have enough
Also, every time I could mind-read I did, even the "I left my tumble drier on" ones and did not reload
I ended the game with the final mobs unable to harm me, I could stand there and wait for fireball to regen then one hit the entire room. I had 8 or so skill points that had no decent skills left to spend on
Basically, you have plenty of XP to mindread. It only seems like your XP is tight at the very beginning
