You will probably not like to hear what I say, but here goes my honest opinion.

There is a huge mismatch between what you say you are interested in doing and what you intend to study.

Organizational psychologist – Not going to happen, companies will not take in some engineering guy who just happen to spend 1 or 2 years studying some masters overseas. If you look at most organizational psychologist out there, they are pretty much very well established professionals with >15 years experience in a related field.

Counsellor – Possible, this is one avenue that studying that masters might help, but do note that it is likely you will end up in either some stat board subsidiary or NGO or VWO which means limited pay and long working hours. Think through carefully first.

Training – Very much an administrative and lowly paid role taken up by at most some generic bachelor’s degree / diploma with experience, you are just wasting money and time to get a Masters in order to do such menial jobs. Most HR folks in training are either ladies with very little interest in climbing the career ladder or old uncles relaxing for retirement.

Organization Effectiveness / Learning & Development etc – Specialized and highly paid roles that are very hard to break into. People who get there are either young high potentials / management trainees who are recruited by mega MNCs (only mega companies can afford to pay for such roles) or high performing mid career HR folks who have chalked up many years of experience in either operations HR or training.

By the time you finish your masters, you will be a early/mid 30s guy without any stellar academic or internship records and largely irrelevant previous work experience, chances for you to get into HR specialist role is very very slim as it is too competitive.

Then we go to your other interest, that is “information science” (whatever that means), you mentioned 3 jobs librarian/archivist/data analyst.

Librarian – Pretty much a job taken up by diploma and below, you will just end up over qualified

Archivist – Possible, but I do not see how a masters in psychology helps. Might as well try and apply with what you have now

Data analyst – I assume its just generic junior level data crunching for either private/public sector. Again you might as well try and apply with what you have now.