Is a home inspector a good idea to determine what i need to fix first on my house?

I live in Canada in an oldish home (built in the 90s, I believe) and it's got some problems. Lighting/wir8ng is odd, indoor tiles put outside, the porch railing is falling off, and recently our bathroom wall started leaking in the rain. All in all, it needs a lot of work and I have no idea where to start.

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My thought was to get a hone inspection done to determine where we need to start first. I do not know if this is a good idea, or would get me the info I need. Professionals, is this a waste of everyone's time and money? Or is this a good way to get an unbiased opinion on the state of my home?

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Any thoughts are appreciated.