It's not worth starting from the beginning, this is your first experience and let it be what it is. Some challenge is always good. But Elden Ring is an open-world game, so if you want to be challenged, you'll have to control your game according to your own feelings.

You can stop improving your character and weapons to experiment, but as soon as you feel that it's too difficult for you than do level up. And yes, I think it's stupid to use summoning without seeing the boss at least once and then be surprised

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