I THINK MY PSP TIMES HAS COME IT HAS F***** UP ALOT IN 1 DAY LOOK ANY ADVICE?

AT FIRST MY GREEN LIGHT JUST WENT OUT DEN IT TAKES LME LIKE 4 TRIES 2 TURN ON MY PSP WEN IM PLAYIN A GAME DA TRIANGLE ON DOESNT WORK SOMETIMES ALSO WEN I PREES HOME DURING A GAME TOL LEAVE IT WONT LET ME I HAV 2 MAKE IT GO 2 HOOLD DEN BRING IT 2 NORMAL 2 LEAVE ALSO MY M33 SCRREN LIK WEN IM @ HOME I PRESS AND WANT 2 LEAVE BUT ICANT