The one-month option would about spend your budget, the photography plan is only offered annually.
You may qualify for »Students & Teacher« or »Schools & Universities« discount but I think those would still exceed your current financial plan.
https://www.adobe.com/creativecloud/plans.html
Perpetual licenses are still offered for Photoshop Elements but have you considered using a Photoshop competitor (like Affinity Photo) or freeware (like Gimp) for now?