Practice is everything. The more you draw sketches more progress you get. When I graduated from the art academy, we went to a museum and copy famous artists to understand their lines, shapes, and composition. Later you will understand how to progress and build your style. You can find some youtube videos or courses, but I suggest the SketchAR app where you can try to draw from scratch and your artistic skills... Source: almost 3 years ago

Https://stonksfolio.com and https://www.portfolio-performance.info look promising. Source: 10 months ago

Https://stonksfolio.com terrible name, but I'll check it out anyway. Source: 10 months ago

I've been using https://stonksfolio.com/ for quite some time now, it's exactly what you are looking for. They have a trial as well so you can check if that's the right tool for you, but for me it was simple and exactly what I needed. Source: about 1 year ago

If you want something more comprehensive, try this: https://stonksfolio.com/. Source: almost 2 years ago

Https://stonksfolio.com I started it to track my all my investment accounts in one place and a couple of years ago decided to open it up to the public. Active users are in the hundreds but not growing rapidly. Tried to monetize it with Patreon but only 2 people actually subscribed. It's a fun project to work on, though, and not having paying customers allows me to ignore it until I get the enthusiasm to work on it... - Source: Hacker News / over 2 years ago