When my friend told me to not use fragile resin until I was a higher AR, I took them a little too seriously and now I'm too afraid to spend my fragiles :( :
Why You Should Save Fragile Resin If Min-maxing Every Character : r/Genshin_Impact
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Genshin Impact: When to Use Condensed & Fragile Resins
How to Get Fragile Resin in Genshin Impact - twenty8two
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A very big and important Advise to all starting out players! I did this mistake, cause I was one of the first players this game had, but you don't have to do