laptop troubles

My laptop is just over three years old.
In computing years that means my marvellous machine is ooooh kind of as old as that old bloke called Methusela. Normally it takes a while to get itself going. I don't mind that. It means I can get coffee or distracted. Either or.
But these days it's got a mind of its own. It will start up and freeze on the log in page or else the mouse will move psycho slow like someone else is moving it. Restarting it usually helps and now that I have a troubleshooter living in the room next to mine, it's not so bad. A quick restart and we're off and racing again.
But now I'm paranoid! What if my laptop dies? It's my second best inanimate friend (my beautiful car, La Fusée de Pôche being my absolute best inanimate friend). I would be beside myself.

Ah well, I shan't worry about what hasn't happened yet.