If I can make a suggestion - perspective control and proportion is very difficult to learn at first. Like anything you do with your hands - from knitting to controlling a joystick in a video game, to the delicate work a surgeon can do with their hands - it takes time to train your hands to move the way your mind wants them to.
I know a surgeon, a good friend - he's a huge guy - a lug of a human being. His hands are massive. They look clumsy - but I've seen him take two paper clips - bend them straight and use them to reach down into the small space between a car seat and the center console and retrieve a parking receipt that had slipped down into the space. Something that will as much control over my (much smaller) hands; I wouldn't have been able to do.
Try this. Take whatever photo you are using as a reference and then take a ruler - mark off a grid on that photo. 1 inch or 3cm - they are roughly the same size... and then carefully draw a grid over your image.
Then take your drawing paper and very carefully draw (lightly) the same size grid over it.
Then only focus on one grid at a time. Look at the original - then try to draw the elements from the photo you see into the grid on your drawing paper in the same place.
This is an exercise to train your eyes and your hands. I was taught this early in my illustration instruction. I never do it anymore... it's been over 20 years since I've last done this. But when you take one of my illustrations and scan it into a computer - you can set it side-by-side with the original photo and in most cases my accuracy for proportion and perspective control is 95%.
I've been drawing for over 40 years. It's taken a long time to get to the level of confidence that I use when I approach a new project now. When I was a teen I'd get freaked out over how complex something was. Now I get excited for a challenge and am all, "Bring it!"
If you love drawing and illustration - be patient and try to learn from the drawings you like and don't like. And keep at it. It is absolutely true that practice makes perfect when it comes to illustration.