Blender, being an open-source 3D creation suite, offers a broad spectrum of modelling, rigging, animation, simulation, rendering, compositing and motion tracking, video editing, and 2D animation tools.

Blender for Beginners

Orientation: Understanding the Blender interface can seem quite intimidating for a beginner. It is packed with functionalities. However, do not fret! Blender's interface is indeed highly customizable and capable of doing simple to most complex tasks. Start by getting familiar with the basic navigation tools. Practice using the orbit, pan, and zoom until you get comfortable moving around in 3D space.

Troubleshooting Basics

Problem: Difficulty in selecting vertices in the Edit Mode
Solution: Make sure that you are not in Wireframe view as it may cause issues in selecting vertices. You can switch between different views using the Z key.

Problem: Cannot see changes in the Render view.
Solution: Ensure that you're using the correct Render Engine (Eevee, Cycles). Some settings may differ based on the render engine you're using. Moreover, make sure that the object is not hidden from the render.

Blolder for Professionals

If you're a seasoned 3D artist, Blender can serve as a powerful tool in your repertoire. You can sculpt, texture, and animate to your heart's content. But of course, even experts encounter roadblocks every now and then.

Professional Troubleshooting

Problem: Smearing textures while texture painting.
Solution: Check your brush settings. Turn off "Accumulate" and play around with the stroke method. If you're using Stencil, understand that it behaves differently compared to 'Tiled' or 'Random'. You need to control the stencil separately to avoid smearing.

Problem: Sculpt mode is lagging with multiresolution.
Solution: Blender can slow down with higher subdivision levels in Multires. Try decreasing the number of subdivisions or switch to the flat shading mode to speed up viewport performance.

Concluding Thoughts

Blender is a vast program and can seem unwieldy, but remember, every professional was once a beginner. With perseverance and a good understanding of the basics, advancing your skills and tackling problems becomes easier.

Seek Community Support

Blender has an active and helpful community. When stuck, don't be afraid to reach out and ask for help. Many people are willing to provide feedback and solutions to specific issues.

Additional Resources

Here are some useful resources for when you're stuck with Blender: Blender Manual, Blender Artists Forum, Blender Stack Exchange.

Good luck and happy Blending!