What's the best way to eat an elephant? A bite at a time. With Spanish verbs the same approach applies. I'll add a few other pieces of advice. First: do not hurry between one 'bite' and the next. Try to digest each one before jumping to the following. As soon as you learn some verb forms, write meaningful sentences, texts, or dialogues with them. Communicate something, speak with someone. Use what you have learned. When one stage is settled, go about the next one. Second: the smaller the 'bites', the better. A whole tense in one gulp can sometimes be too much. At the very beginning, you might even want to learn only some persons rather than all of them in the same go. Also, the irregular verbs can be dealt with by instalments better than all of them together. Third: choosing the right sequencing can make things much easier. Taking advantage of some similarities between tenses reduces the effort enormously. Last but not least: play and enjoy. Challenge your study buddies and/or yourself. Search for games, or transform some tests you may find on the web into games. Kids as well as puppies can train for the most difficult tasks as adults with pleasure provided the training takes the shape of a game. Become a bit childish and play. Get somebody to play with you and enjoy. Good luck!

Present, past and future is a piece of cake! But when it comes to comparing let's say "Past vs. Present Perfect" you migh face some difficulties. Try to think in examples for giving the same idea. Present: "Pablo no llega (aún)" Past: "Pablo no llegó (en todo el día de hoy)" Future: "Pablo no vendrá (anticipando)" Present Perfect: "Pablo no ha llegado (aún)" Past Perfect: "Pablo no había llegado (hasta que.. finalmente llegó)" And so on and so forth. I'm willing to help you out. Contact me if you wish :)