Getting started but don't need to lose much

At your size you may want to consider strength training--recomposition rather than weight loss. I'm not at that point in my journey yet so I'm not the best to give advice, though. I know that my results are generally better when I'm strength training.

Sara has the right term for what everyone wants to do ultimately with weight loss: Body Recomposition.
Simply put, this means having lower body fat % and sufficient muscle mass so that the low BF reveals the curves, lines, and definition desired. Some general tips here would be:

• Do not use the scale as your sole means of tracking changes in your body. Scale + Pictures + Tape Measurements is much more accurate.
• Everyone on earth should do some fashion of resistance training regardless of goals. Weights such as barbells are the most common and often most convenient way to do this, but they are not the only way.
• Building muscle while in a calorie deficit is typically impossible. Keep up training with reduced intensity while in a deficit to preserve muscle mass and definition. If you're trying to build muscle, keep calories at maintenance or ideally above. Your body is creating new tissue, additional resources are required.
• Everyone has slightly different responses in how their body changes and behaves. Do not take a goal weight or percentage as gospel but use how you feel, the pictures, mirror, and dress size to decide if you are in the shape you want to be in or not. This may be 20% BF, 12%, or anything else. It is far more important that you progress towards and achieve the goal you desire, whatever the numbers may be for you.
• With resistance training consistency is more important than perfection. Start with body weight, get into a routine, then find a way to add resistance whether by new and more advanced movements, weights, bands, or otherwise.

From what you have said, I would suggest getting the habit of training in and cutting down weight first. See what changes happen and make a judgement on whether you want to cut down further, or work on adding muscle which will give the tone, firmness, and strength desired. Finally the best of luck to you however you decide to go forwards.