With numbering, you can restore the highest number and you will be taken to your last position in the game. If the game interface allows limitless saved games, avoid saving on top of other saved games. This will make it easier if you have to jump back a few games to replay a scene. Don't be ashamed to ask for help. There are several sources for hints.
Most game companies have a hint line which charge a small fee by the minute.
You can also purchase a hint book. These might also contain maps and other information not included with the game documentation as well as the solution. Look in the manual for addresses and phone numbers. Other sources are the adventure game newsgroup mentioned above and the many web sites that offer walk-thrus. Resist the temptation to download the complete walk-thru as you may fall into the trap of finding it easier to look up the solution rather than trying to figure it out on your own.