Also, this video inspired me to not throw out my old candles when the wick is used up.

Place the candle jar into the simmering water.

Then, remove the wax once its melted just enough to remove.

How To Reuse Old Candle Wax Into New Candles - DIY Old Candles - Upcycle Old Candles

Image by Craftcore DIY & Sewing via YouTube

Melt all of the wax.

ensure to drape the new wick, and pour the hot wax in the center.

In conclusion, its easy to recycle old candles into new candles.

Melt Old Candles To Make New Candles - DIY Old Candle Wax - Homemade Candle Making

DIY Candle Crafts - DIY Wax Pour - DIY New Candles