Qs: Volunteer work, lack of tax returns?

[pseudonymmed]

I will soon be able to apply for naturalisation. I have been unemployed for a long time, sometimes studying and sometimes being supported by my partner. I have done a variety of volunteer work and unpaid creative gigs and occasionally very small casual paid gigs but never earned enough to owe taxes.

-Do I need to list any unpaid volunteer work or internships I have done?
-Will it be a problem if I list these jobs but have no record of ever filling in a tax form?

On occasion over the years when I've entered the country and had to fill in the little card for non-EU people I have listed all of the following at least once: homemaker, unemployed, artist, designer. Will the fact that I didn't list unemployed each time be an issue? I didn't really think much of it at the time as I put other things down when I was doing art or design work but for little or no money, so have never earned enough to owe taxes. So I've never filed a tax return in this country or registered as self-employed. Could this cause any issues?

Thanks!

[CR001]

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