"It’s going to get a lot tougher, but we have got the ability to get better and the amount of work we do on the field and off the field with our focus on cricket is going to be the key."
Sri Lanka clinched the three-match series with a seven-wicket victory in the second Test on Tuesday after the temperamental tourists suffered a spectacular collapse.
Pakistan, sitting pretty at 285-1 just before lunch on the third day, crashed to 320 all out after the break to leave Sri Lanka a victory target of 171 on a good batting pitch at the P. Sara Oval.
Sri Lanka cruised home with two days to spare to record their first home series win over Pakistan after losing three of their five previous series and drawing the other two.
Sangakkara, 31, took over as captain after Mahela Jayawardene stepped down in