From your hotel at Yau Ma Tei, you can take metro Tsuen Wan line from Yau Ma Tei to Lai King, transforming to Tung Chung line to Tung Chung Station. Then walk to Ngong Ping 360 Cable Car terminal.
After Ngong Ping 360, you can go to Tung Chung to take mtr to Sunny Bay and transfer to the Disneyland Resort to get to Disneyland.
From Yau Ma Tei to Ocean Park, you can take MTR tsen wan line to Central and then take bus 6A to Ocean Park.
After ocean park, you can take bus 6A back to Central, then take bus 1 to the peak.
The third day, you can go to visit Aberdeen, Causeway Bay,Repulse Bay and Stanley. Do some shopping at Central. At night, you can go to the night market Temple street for a visit.
The forth Day, you can go to visit the Avenue of stars and do some shopping at Tsin Sha Tsui area.