1.
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this with google translate can be quite helpful as well.
2. Have a peek at other creators' code on how they did things, especially mundane but important stuff like time passing/ sidebar updating/etc., you can gain valuable insight.
- Avoid like plague Family Life though for that purpose, and probably Family Problems as well.
- Girllife has an excellent code structure, but their ample use of dynamic code may baffle you at first.
- Avenger uses a QSP wrapper that allows him to use CSS for styling, but also overloads the code with HTML stuff, try your hands at a plain QSP game.
3. Trial and error, probably the most important part. QSP is simple but has caveats you need to find your way around.
4. Post your code snippers here, someone could probably help if you are stuck.
That's about it.