Research Master Program

I have been thinking, if i were to choose to study master... Wat research should i do. There are many area, but only 2 that caught my eyes so far.

Data warehouse architecture and design (which is veli veli similar to wat i do now, so should not be a problem handling such things for me. mostly for industry used. Rarely can create a new product)

Artificial Intelligent Studies (Which study the used of artificial intelligent)

So it kept me wondering, to play safe, i should have taken the first master research which is pretty much gurantee a sure pass for me. But the second research master seems way more interesting as i like creat stuff and so...

So i really hope my reader can help me answer this question. please please please response to me for this post... i am confuse.

1) If i were to take the first choice, i would research the usage of XML in integrating System for the Datawarehouse architecture design.

2) If i were to take the second choice, i would research on Mobile Aritificial Intelligent clinic. It is a clinic vending machine where it uses disposable thermometer, a thumb heartbeat tracker and an electronic blood pressure checker build into this vending machine. Along with a set of artificial intelligent rules that can perform wat a normal desease or sickness medications (cough, small wound, slight fever, flu, stomache, skin itchiness). But sorry no MC for yah, u wan MC, u go see real doctor. This is mainly for rural area without clinic, government hospital which always packed with people, Hospital that wanted to cut cost for 24 hours patient treatment, and for people who are lazy to see doctor coz of small sickness.

3) If i were to take the second choice as well, i might also research in online psychologist. similar as the first system, but mainly it does not produce any medications, it juz give advice for people who faces depression, anxiety, sadness, commit suicider, ADHD and etc. Since Asean are likely more refuse to see a physchology even they have some mental illness (juz like me). So this system would probably help them a lot.

4) If i were to take other choice, i might consider on portable object oriented database system. Similar as Microsoft Access we are using now, but it is object oriented based, means it is different from previous relational database design.

Telll me please.... i am really confuse... i dont even know if i should take this path at all. Or maybe i should join big company? or maybe a small company? or maybe becoming a tutor... AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH i am so confuse.