I do not have a rototiller. I love my turning fork, but a weed patch might prove to be a wrestling match for a turning fork.
If she has patience (and for a gardener in April, patience can feel like holding a team of wild horses),
- cover the area with black plastic this summer OR
- use the lasagna method and layer on whatever you have--newspaper, cardboard, dead leaves, manure if you can get it, compost, old wood chips, mulch hay OR
- combine #2 and #1. Do the lasagna method and then cover it with black plastic. Or an old carpet (preferably wool).
We may try to turn over a new leaf, beginning right now, but we actually do not have that sort of control over our minds.
Mulch your mind with meditation, practice patience, and a year from now you will have a garden of happiness.