@revoluciana@chaosfem.tw So, if you're serious about looking in to it, a paid ancestry account is a good way to start. Fill in as much detail as you know in your tree, including parents names, grandparents names, great grandparents names etc. If you can find matching ancestry records for any of those, you're off to a good start, because the next thing that will happen, is ancestry will start making recommendations to you based off of other trees that use that same record. It can take a day for the suggestions to come in once you link a new record, but it's worth waiting.

There's also wiki tree, which is basically a public, crowd sourced "world tree" trying to create a unified, shared family tree. There's a good chance your parents aren't in it, probably a 50/50 chance of your grand parents being in it, but a very good chance your great grandparents are already there. It's just a matter of finding them. And if you can find them, you can find their records.