it's a game of attrition, but once you get the patterns it's pretty damn fun.
some words of advice to help you for later:
-save upon your damn rupees. underneath one of the Statues you will find a assageway to a dwarf who sells you the blue ring for 250 rupees, which will help out...a lot.
-Bombs are one of the best items in the game. you can kill the first 3 bosses using them(if you time it right even, the 3rd boss dies in one hit!)
-when you get stuck in the maze of the western woods, I'll save you some rupees so you don't have to pay off the old lady: northwest, southwest.
-make sure you get the permit from the old man in the northeastmost corner of the map for the old lady to sell you potions
-whenever you find a guy who offers you a piece of heart or a potion, take the heart every time
-Dungeon #6 will be a complete bitch-that area is one of the reasons why Like-Likes are the most hated enemies in gaming history
-Ironically, Dungeon #7 may be the easiest-but you will need a lot of bombs
-also in Dungeon #7, the monster blocking your path has his stomach growling, which is a clue of what to give him
-Dungeon #9 is the only dungeon in the game that has 2 items inside, and you need them both, because one is the only thing that can kill the final boss, and the other is the thing that will make you survive reaching him
-be careful when exploring the hidden areas on the map-sometimes there where be people(or monsters) that give you money or items, but every once in a while you will get a pissed off guy who has you pay for his door.
Games in the NES era often did NOT want the player to win. We're talking start-over-at-the-beginning Game Overs here. And we didn't always have the Konami Kode to help us (and even when we did, it still took ONE hit to die!)
We 80's kids grew up tough when it came to games. The toughest of all were the old, OLD school PC gamers; the ones who bought their games on floppy discs in friggin' zip lock bags at stores. Those guys humble a coddled console kid like me.
Dangnabit! Back in Mah day, we didn't have these conflagged Online gaming. When we wanted play with friend, we played in my house. With two controllers. We had no "Wi-Fi" or "Wireless controls". Ours plugged into our system and we liked it!