She seems small to me.
I feel like your plant should be at that vegetative stage where things start getting a little more explosive in terms of growth and size. So something is going awry *not as planned or intended*
I have a question, does it seem like it is growing slowly to you? To me it looks like its time for a bigger growing container with more soil, make sure ur soil is providing the fertilizer/nutes required for vegetative growth. If it doesnt start her on some type of fertilizer. When you transplant the plant make her level with the container and not have her sit in the container.
What kind of grow light are you using? Might not being getting sufficient light, this will stunt your plant.
When you grow inside ALL of the plants life support is on your shoulders so you need to really be involved with things
There is a whole host of things that could be causing this plant to stunt.
Lack of nutes, lack of soil, soil mixture or the soil used in general being of sub par quality. An example of that would be having to much perlite or coco coir in an outdoor pot making the soil/plant dry out way to fast for a healthy plant outdoor.
Temperatures indoor if they are too high in particular.
Air flow is super important.
Over watering / under watering / not having scheduled water/feeding times.
For a quick, super quick fix bro. Go throw that sucker in the dirt outside. Very minimal effort and big juicy yields.
Peace and blessings bro ham.