Fitness tips for female trying to build strength (3 month progress pics included)?

Anonymous
Feeling discouraged as I'm three months into exercising without significant visual results.

Body Stats: female, 5'4", and 113lbs

Utimate goal is to look and feel stronger.

Training:
Months 1&2: 20 mins of cardio followed by resistance training x3 a week alternating muscle groups (legs, arms, and back) with 3 sets of 10 reps. I've been doing leg press, dumbbell squats, dumbbell lunges, kettlebell deadlift, bicep curls, military press, chest press, weighted row, lat pull down, tricep extension.

Month 3: I got bored and signed up for a HIIT Class once a week and I’m always mega sore after. I do another full body HIIT on my own (usually a routine that I find online) and do one full body resistance training day with the same moves as months 1&2.

Progress:
Arms have gotten stronger (went from 10lb dumbbells to 15lbs-20lbs)

Legs are often sore after training but they look exactly the same (I’m afraid to use the squat rack without a spotter).

Weight has not moved AT ALL... I want to get to at least 115lbs (maybe 120lb) but obviously would like it to be muscle. I don’t track my calories, but I’ve been trying to eat more.

Anyone with tips out there?
Feb 1st
Feb 1st
May 1st
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Fitness tips for female trying to build strength (3 month progress pics included)?
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