Hi.
I've a entry-level DSLR with me for a few months and I really like photography.
However, I feel that I'm not doing justice to my camera due to the lousy shots I get out from my camera. Any advice?
Yes, forget this nonsense of 'doing justice to the camera'. You don't own the camera anything. It's a tool for a past time activity which you chose because of interest, right?. Or does a cycler owns something to his bicycle? Find out why you like to take pictures and follow this idea. Don't put any pressure onto yourself to achieve something in a certain point in time or whatnot. There are many people buying high end cameras and doing nothing but snapshots. Nobody is obliged to become Ansel Adams just because he/she uses a camera. Relax
Well basically over these couple of months I've been taking RAW + L.. and those poorly taken photos are eating up a lot of memory on my computer, so I cannot afford that!! everytime I go back to those I thought were initially nice photos, I'll defintely find some fault with them.... Haha is there anyway to take RAW + S or something? X_X
Delete whatever is crap. Be sharp in critics, remove everything that is not a real keeper but keep in mind what went wrong. Do it better next time. Why RAW+L? Either you need RAW for post processing or L is enough. But according your questions about PP I guess you can skip RAW.
The question about how much PP is age old and repeatedly discussed here. Answer is: use as much PP as necessary to achieve the picture
you want. Naturally, HDR will need more PP than a simple daylight landscape pic. It doesn't matter. If you are happy with the image straight from cam so be it, if you spend 3 days doing PP to get what you want - also fine.
Does good photography depend on natural/coincident arrangement of things, or does the photographer actually need to shift things to get good shots?
Can studio photographer depend on coincidence? Can a street photographer make arrangements? Can a nature photographer remove trees? Can a wedding be fully arranged without any coincidence or sudden unexpected events? Hope these questions give you some pointers to think about.
Learn the basics of light, composition, camera technology and techniques. Try to use it, put efforts into the pictures you take. As others have mentioned: the difference is the thinking process before you press the shutter button.