Is normal to be really unsure about getting into relationship?

I have been single for like five years now. I would say being single has become like comfort zone. Now i met one girl and she is really pretty and her friends told mines that she likes me. But i just dont feel like getting into relationship. Experience all that drama again. And heartbreak. I have carried my own shit alone for so long that i dont need anyone to help me or support me. Also i would say relationships are not really my thing. I feel like i dont need anyone and go through all those shitty parts of being with someone again even though she is really pretty and seems like a good girl

Is normal to be really unsure about getting into relationship?
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