You may have heard of the baseball statue method - personally, I found that a bit tedious. If you thought so too, check out this method!
Make a manual save file before starting, in case anything goes wrong!
If you have a character that you don't want to reset the progress on that's fine, a lower intelligence level simply increases the chance of Idiot Savant activating. All you need is 5 luck, and atleast the 2nd rank of the Idiot Savant Perk.
If you are familiar with the statue method, then you'll know about the material dupe glitch. Even if you're not, it is relatively simple to perform. The materials we will need to craft the necessary item - Bleed Out Syringes - are Fiberglass, Oil, and Steel. If you don't have any of these to begin with, they can be easily obtained from Abraxo Cleaner (Fiberglass), Cooking Oil, Paint, Oil Cans, (Oil), and you can get a good amount of starting steel by scrapping the cars and junk in Sanctuary. Now open your Pip-Boy and drop your materials on the ground, ideally in a relatively flat location, with minimal clutter on the ground. What you want to do is press Square(scrap), X(accept), and O(store), very quickly, and taking your finger off each button as you go (only one button should be pressed at a time). I like to think of it like piano keys. Once you learn it, it is a very easy motion. If performed correctly, you should see the store window on top of the scrap window; accept both, and you have doubled that material!
Once you've gotten about ~5-10k of those three materials(whenever you get low you can always repeat the duplication glitch), all you need now is a Chemistry Station.
A Chemistry Station can be found behind the yellow house near the bridge. It's the last house on the right. Just press x to pick it up, and you can move closer to your workbench.
I also like to place a small container, such as a wooden crate, near the Chemistry Station, as the syringes have a small weight that can add up!
To improve your XP rates, drink any alcohol to reduce your INT and increase the chance of Idiot Savant. If you have Mutfruit, Nuka Cola, and Whiskey, you can also craft a Dirty Wastelander, which will reduce your INT by 2. After drinking your alcohol of choice, go to the Chemistry Station and select Bleed Out Syringe under Syringe Ammo, and start pressing X as fast as you can!
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