Gaps are normal
Very few working lives are continuous. Seasonal work, caring for family, going back to a community, illness, and periods of self employment all create gaps. A resume that tries to hide them usually reads worse than one that accounts for them in a line.
You do not owe an employer a personal explanation. A short factual note is enough: 2021 to 2022, full time family caregiving. That is a complete answer.
Community and volunteer work is work
Serving on a band council committee, coordinating a community event, running a youth program, helping with a harvest, or interpreting for elders all demonstrate real skills: budgeting, scheduling, supervising people, negotiating, and working to a deadline with limited resources. Put them in the same section as paid work and describe them the same way.
Lead with tickets and certifications
In trades, transport, construction, healthcare support and camp work, the certificate often matters more than the job history. If you hold a Class 1 or Class 3 licence, first aid, WHMIS, fall protection, food safe, a security licence or any ticket relevant to the role, put it near the top where it will be seen in the first few seconds.
Write results, not duties
Replace a list of tasks with what actually happened. Instead of responsible for inventory, write ran inventory for a store carrying about two thousand lines, cut stock discrepancies by keeping weekly counts. Use real figures only where you know them. Invented numbers are easy to catch in an interview.
Deciding whether to self identify
Whether you identify as First Nations, Inuit or Metis on an application is entirely your choice, and there is no wrong answer. Some employers run Indigenous hiring programs where identifying gives you access to roles and support. Others collect the information and do nothing useful with it. If you are unsure, it is reasonable to ask an employer what they do with the information before you provide it.
Keep it to two pages
Two pages is plenty for almost any role. Put the most relevant experience first rather than the most recent if they are not the same thing, and cut anything older than about ten years unless it directly matters.