you apply sa bank o sa mutual fund carrier company.
there would be no problem for your age.
for 100k, i would suggest not putting all the eggs in one basket, it is still an investment. try just to put around 60-70% of it and put the rest in time deposit or treasury bills.

note that the proceeds can be withdrawn anytime, kaya lang magbabayad ka ng management fee which may lead to loss kung i withdraw mo sya within the first year.