Is it okay to use a sim card that's not properly cut?

So recently i changed my number so i got a new sim card. I use an iphone 4s which requires a micro sim card. I didn't have the cutting tool to cut the normal sized to micro ones, so i cut the sim by myself by downloading a template from internet.
but after i cut it, turns out that i cut it a little too small than the standard size.

it works okay for now, but will it give my phone or connection in the future?

As long the yellowish part behind it not broken its okay

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